Search criteria
183 vulnerabilities found for kubernetes by kubernetes
CVE-2025-5187 (GCVE-0-2025-5187)
Vulnerability from cvelistv5 – Published: 2025-08-27 16:20 – Updated: 2025-08-28 03:55
VLAI?
Summary
A vulnerability exists in the NodeRestriction admission controller in Kubernetes clusters where node users can delete their corresponding node object by patching themselves with an OwnerReference to a cluster-scoped resource. If the OwnerReference resource does not exist or is subsequently deleted, the given node object will be deleted via garbage collection.
Severity ?
6.7 (Medium)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | Kubernetes |
Affected:
v1.31.0 , ≤ v1.31.11
(custom)
Affected: v1.32.0 , ≤ v1.32.7 (custom) Affected: v1.33.0 , ≤ v1.33.3 (custom) |
Credits
Paul Viossat
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CVE-2025-4563 (GCVE-0-2025-4563)
Vulnerability from cvelistv5 – Published: 2025-06-23 15:38 – Updated: 2025-06-23 15:58
VLAI?
Summary
A vulnerability exists in the NodeRestriction admission controller where nodes can bypass dynamic resource allocation authorization checks. When the DynamicResourceAllocation feature gate is enabled, the controller properly validates resource claim statuses during pod status updates but fails to perform equivalent validation during pod creation. This allows a compromised node to create mirror pods that access unauthorized dynamic resources, potentially leading to privilege escalation.
Severity ?
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | Kubernetes |
Affected:
v1.32.0 - v1.32.5
Affected: v1.33.0 - v1.33.1 |
Credits
amitschendel
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CVE-2024-5321 (GCVE-0-2024-5321)
Vulnerability from cvelistv5 – Published: 2024-07-18 18:15 – Updated: 2024-09-13 17:05
VLAI?
Summary
A security issue was discovered in Kubernetes clusters with Windows nodes where BUILTIN\Users may be able to read container logs and NT AUTHORITY\Authenticated Users may be able to modify container logs.
Severity ?
6.1 (Medium)
CWE
- CWE-276 - Incorrect Default Permissions
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | Kubernetes |
Affected:
1.27.0 , ≤ 1.27.15
(semver)
Affected: 1.28.0 , ≤ 1.28.11 (semver) Affected: 1.29.0 , ≤ 1.29.6 (semver) Affected: 1.30.0 , ≤ 1.30.2 (semver) Unaffected: 1.27.16 Unaffected: 1.28.12 Unaffected: 1.29.7 Unaffected: 1.30.3 |
Credits
Paulo Gomes @pjbgf, SUSE
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CVE-2024-3177 (GCVE-0-2024-3177)
Vulnerability from cvelistv5 – Published: 2024-04-22 23:00 – Updated: 2024-09-10 20:48
VLAI?
Summary
A security issue was discovered in Kubernetes where users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using containers, init containers, and ephemeral containers with the envFrom field populated. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the kubernetes.io/enforce-mountable-secrets annotation are used together with containers, init containers, and ephemeral containers with the envFrom field populated.
Severity ?
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | Kubernetes |
Affected:
0 , ≤ 1.27.12
(semver)
Affected: v1.28.0 - v1.28.8 Affected: v1.29.0 - v1.29.3 |
Credits
tha3e1vl
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CVE-2023-5528 (GCVE-0-2023-5528)
Vulnerability from cvelistv5 – Published: 2023-11-14 20:32 – Updated: 2024-09-06 14:18
VLAI?
Summary
A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.
Severity ?
7.2 (High)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | kubelet |
Affected:
v1.28.0 , ≤ v1.28.3
(semver)
Affected: v1.27.0 , ≤ v1.27.7 (semver) Affected: v1.26.0 , ≤ v1.26.10 (semver) Affected: 0 , ≤ v1.25.15 (semver) Unaffected: v1.28.4 Unaffected: v1.27.8 Unaffected: v1.26.11 Unaffected: v1.25.16 |
Credits
Tomer Peled
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CVE-2023-3955 (GCVE-0-2023-3955)
Vulnerability from cvelistv5 – Published: 2023-10-31 20:36 – Updated: 2025-02-13 17:03
VLAI?
Summary
A security issue was discovered in Kubernetes where a user
that can create pods on Windows nodes may be able to escalate to admin
privileges on those nodes. Kubernetes clusters are only affected if they
include Windows nodes.
Severity ?
8.8 (High)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | kubelet |
Affected:
v1.28.0
Affected: v1.27.0 , ≤ v1.27.4 (semver) Affected: v1.26.0 , ≤ v1.26.7 (semver) Affected: v1.25.0 , ≤ v1.25.12 (semver) Unaffected: v1.28.1 Unaffected: v1.27.5 Unaffected: v1.26.8 Unaffected: v1.25.13 Unaffected: v1.24.17 Affected: 0 , ≤ v1.24.16 (semver) |
Credits
James Sturtevant
Mark Rossetti
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CVE-2023-3676 (GCVE-0-2023-3676)
Vulnerability from cvelistv5 – Published: 2023-10-31 20:22 – Updated: 2025-02-27 20:38
VLAI?
Summary
A security issue was discovered in Kubernetes where a user
that can create pods on Windows nodes may be able to escalate to admin
privileges on those nodes. Kubernetes clusters are only affected if they
include Windows nodes.
Severity ?
8.8 (High)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | kubelet |
Affected:
v1.28.0
Affected: v1.27.0 , ≤ v1.27.4 (semver) Affected: v1.26.0 , ≤ v1.26.7 (semver) Affected: v1.25.0 , ≤ v1.25.12 (semver) Unaffected: v1.28.1 Unaffected: v1.27.5 Unaffected: v1.26.8 Unaffected: v1.25.13 Unaffected: v1.24.17 Affected: 0 , ≤ v1.24.16 (semver) |
Credits
Tomer Peled
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CVE-2021-25736 (GCVE-0-2021-25736)
Vulnerability from cvelistv5 – Published: 2023-10-30 02:19 – Updated: 2025-06-12 14:42
VLAI?
Summary
Kube-proxy
on Windows can unintentionally forward traffic to local processes
listening on the same port (“spec.ports[*].port”) as a LoadBalancer
Service when the LoadBalancer controller
does not set the “status.loadBalancer.ingress[].ip” field. Clusters
where the LoadBalancer controller sets the
“status.loadBalancer.ingress[].ip” field are unaffected.
Severity ?
5.8 (Medium)
CWE
- CWE-114 - Process Control
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | Kubernetes |
Affected:
0 , ≤ v1.20.5
(v1.20.5)
|
Credits
Eric Paris
Christian Hernandez
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CVE-2023-2728 (GCVE-0-2023-2728)
Vulnerability from cvelistv5 – Published: 2023-07-03 20:06 – Updated: 2025-02-13 16:45
VLAI?
Summary
Users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the `kubernetes.io/enforce-mountable-secrets` annotation are used together with ephemeral containers.
Severity ?
6.5 (Medium)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | Kubernetes |
Affected:
v1.24.14 , ≤ <=
(semver)
Affected: v1.25.0 - v1.25.10 Affected: v1.26.0 - v1.26.5 Affected: v1.27.0 - v1.27.2 |
Credits
Rita Zhang
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CVE-2025-5187 (GCVE-0-2025-5187)
Vulnerability from nvd – Published: 2025-08-27 16:20 – Updated: 2025-08-28 03:55
VLAI?
Summary
A vulnerability exists in the NodeRestriction admission controller in Kubernetes clusters where node users can delete their corresponding node object by patching themselves with an OwnerReference to a cluster-scoped resource. If the OwnerReference resource does not exist or is subsequently deleted, the given node object will be deleted via garbage collection.
Severity ?
6.7 (Medium)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | Kubernetes |
Affected:
v1.31.0 , ≤ v1.31.11
(custom)
Affected: v1.32.0 , ≤ v1.32.7 (custom) Affected: v1.33.0 , ≤ v1.33.3 (custom) |
Credits
Paul Viossat
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CVE-2025-4563 (GCVE-0-2025-4563)
Vulnerability from nvd – Published: 2025-06-23 15:38 – Updated: 2025-06-23 15:58
VLAI?
Summary
A vulnerability exists in the NodeRestriction admission controller where nodes can bypass dynamic resource allocation authorization checks. When the DynamicResourceAllocation feature gate is enabled, the controller properly validates resource claim statuses during pod status updates but fails to perform equivalent validation during pod creation. This allows a compromised node to create mirror pods that access unauthorized dynamic resources, potentially leading to privilege escalation.
Severity ?
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | Kubernetes |
Affected:
v1.32.0 - v1.32.5
Affected: v1.33.0 - v1.33.1 |
Credits
amitschendel
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CVE-2024-5321 (GCVE-0-2024-5321)
Vulnerability from nvd – Published: 2024-07-18 18:15 – Updated: 2024-09-13 17:05
VLAI?
Summary
A security issue was discovered in Kubernetes clusters with Windows nodes where BUILTIN\Users may be able to read container logs and NT AUTHORITY\Authenticated Users may be able to modify container logs.
Severity ?
6.1 (Medium)
CWE
- CWE-276 - Incorrect Default Permissions
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | Kubernetes |
Affected:
1.27.0 , ≤ 1.27.15
(semver)
Affected: 1.28.0 , ≤ 1.28.11 (semver) Affected: 1.29.0 , ≤ 1.29.6 (semver) Affected: 1.30.0 , ≤ 1.30.2 (semver) Unaffected: 1.27.16 Unaffected: 1.28.12 Unaffected: 1.29.7 Unaffected: 1.30.3 |
Credits
Paulo Gomes @pjbgf, SUSE
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CVE-2024-3177 (GCVE-0-2024-3177)
Vulnerability from nvd – Published: 2024-04-22 23:00 – Updated: 2024-09-10 20:48
VLAI?
Summary
A security issue was discovered in Kubernetes where users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using containers, init containers, and ephemeral containers with the envFrom field populated. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the kubernetes.io/enforce-mountable-secrets annotation are used together with containers, init containers, and ephemeral containers with the envFrom field populated.
Severity ?
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | Kubernetes |
Affected:
0 , ≤ 1.27.12
(semver)
Affected: v1.28.0 - v1.28.8 Affected: v1.29.0 - v1.29.3 |
Credits
tha3e1vl
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CVE-2023-5528 (GCVE-0-2023-5528)
Vulnerability from nvd – Published: 2023-11-14 20:32 – Updated: 2024-09-06 14:18
VLAI?
Summary
A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.
Severity ?
7.2 (High)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | kubelet |
Affected:
v1.28.0 , ≤ v1.28.3
(semver)
Affected: v1.27.0 , ≤ v1.27.7 (semver) Affected: v1.26.0 , ≤ v1.26.10 (semver) Affected: 0 , ≤ v1.25.15 (semver) Unaffected: v1.28.4 Unaffected: v1.27.8 Unaffected: v1.26.11 Unaffected: v1.25.16 |
Credits
Tomer Peled
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CVE-2023-3955 (GCVE-0-2023-3955)
Vulnerability from nvd – Published: 2023-10-31 20:36 – Updated: 2025-02-13 17:03
VLAI?
Summary
A security issue was discovered in Kubernetes where a user
that can create pods on Windows nodes may be able to escalate to admin
privileges on those nodes. Kubernetes clusters are only affected if they
include Windows nodes.
Severity ?
8.8 (High)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | kubelet |
Affected:
v1.28.0
Affected: v1.27.0 , ≤ v1.27.4 (semver) Affected: v1.26.0 , ≤ v1.26.7 (semver) Affected: v1.25.0 , ≤ v1.25.12 (semver) Unaffected: v1.28.1 Unaffected: v1.27.5 Unaffected: v1.26.8 Unaffected: v1.25.13 Unaffected: v1.24.17 Affected: 0 , ≤ v1.24.16 (semver) |
Credits
James Sturtevant
Mark Rossetti
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CVE-2023-3676 (GCVE-0-2023-3676)
Vulnerability from nvd – Published: 2023-10-31 20:22 – Updated: 2025-02-27 20:38
VLAI?
Summary
A security issue was discovered in Kubernetes where a user
that can create pods on Windows nodes may be able to escalate to admin
privileges on those nodes. Kubernetes clusters are only affected if they
include Windows nodes.
Severity ?
8.8 (High)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | kubelet |
Affected:
v1.28.0
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Credits
Tomer Peled
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CVE-2021-25736 (GCVE-0-2021-25736)
Vulnerability from nvd – Published: 2023-10-30 02:19 – Updated: 2025-06-12 14:42
VLAI?
Summary
Kube-proxy
on Windows can unintentionally forward traffic to local processes
listening on the same port (“spec.ports[*].port”) as a LoadBalancer
Service when the LoadBalancer controller
does not set the “status.loadBalancer.ingress[].ip” field. Clusters
where the LoadBalancer controller sets the
“status.loadBalancer.ingress[].ip” field are unaffected.
Severity ?
5.8 (Medium)
CWE
- CWE-114 - Process Control
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Kubernetes | Kubernetes |
Affected:
0 , ≤ v1.20.5
(v1.20.5)
|
Credits
Eric Paris
Christian Hernandez
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VAR-201710-1433
Vulnerability from variot - Updated: 2024-07-23 19:53Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response. Dnsmasq versions 2.77 and earlier contains multiple vulnerabilities. dnsmasq Exists in a buffer error vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. Multiple Siemens SCALANCE Products are prone to the following security vulnerabilities: 1. A buffer-overflow vulnerability 2. This BID is being retired as a duplicate of BID 101085 Dnsmasq VU#973527 Multiple Security Vulnerabilities. =========================================================================== Ubuntu Security Notice USN-3430-3 January 04, 2018
dnsmasq regression
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Summary:
USN-3430-2 introduced regression in Dnsmasq.
Software Description: - dnsmasq: Small caching DNS proxy and DHCP/TFTP server
Details:
USN-3430-2 fixed several vulnerabilities. The update introduced a new regression that breaks DNS resolution. This update addresses the problem.
We apologize for the inconvenience.
Original advisory details:
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14491)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled IPv6 router advertisements. (CVE-2017-14492)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DHCPv6 requests. (CVE-2017-14493)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DHCPv6 packets. A remote attacker could use this issue to possibly obtain sensitive memory contents. (CVE-2017-14494)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. A remote attacker could use this issue to cause Dnsmasq to consume memory, resulting in a denial of service. (CVE-2017-14495)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14496)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 12.04 ESM: dnsmasq=C2=A02.59-4ubuntu0.4 dnsmasq-base2.59-4ubuntu0.4 dnsmasq-utils2.59-4ubuntu0.4
After a standard system update you need to reboot your computer to make all the necessary changes. 6) - i386, x86_64
- -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Critical: dnsmasq security update Advisory ID: RHSA-2017:2839-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:2839 Issue date: 2017-10-02 CVE Names: CVE-2017-14491 =====================================================================
- Summary:
An update for dnsmasq is now available for Red Hat Enterprise Linux 6.2 Advanced Update Support, Red Hat Enterprise Linux 6.4 Advanced Update Support, Red Hat Enterprise Linux 6.5 Advanced Update Support, Red Hat Enterprise Linux 6.5 Telco Extended Update Support, Red Hat Enterprise Linux 6.6 Advanced Update Support, Red Hat Enterprise Linux 6.6 Telco Extended Update Support, and Red Hat Enterprise Linux 6.7 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- Relevant releases/architectures:
Red Hat Enterprise Linux HPC Node EUS (v. 6.7) - x86_64 Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) - x86_64 Red Hat Enterprise Linux Server AUS (v. 6.2) - x86_64 Red Hat Enterprise Linux Server AUS (v. 6.4) - x86_64 Red Hat Enterprise Linux Server AUS (v. 6.5) - x86_64 Red Hat Enterprise Linux Server AUS (v. 6.6) - x86_64 Red Hat Enterprise Linux Server EUS (v. 6.7) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 6.4) - x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 6.5) - x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 6.6) - x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 6.7) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 6.5) - x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 6.6) - x86_64 Red Hat Enterprise Linux Server TUS (v. 6.5) - x86_64 Red Hat Enterprise Linux Server TUS (v. 6.6) - x86_64
- Description:
The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.
Security Fix(es):
- A heap buffer overflow was found in dnsmasq in the code responsible for building DNS replies. (CVE-2017-14491)
Red Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J. Serna (Google Security Team), Gabriel Campana (Google Security Team), Kevin Hamacher (Google Security Team), and Ron Bowes (Google Security Team) for reporting this issue.
- Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
- Bugs fixed (https://bugzilla.redhat.com/):
1495409 - CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies
- Package List:
Red Hat Enterprise Linux HPC Node EUS (v. 6.7):
Source: dnsmasq-2.48-16.el6_7.1.src.rpm
x86_64: dnsmasq-2.48-16.el6_7.1.x86_64.rpm dnsmasq-debuginfo-2.48-16.el6_7.1.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7):
x86_64: dnsmasq-debuginfo-2.48-16.el6_7.1.x86_64.rpm dnsmasq-utils-2.48-16.el6_7.1.x86_64.rpm
Red Hat Enterprise Linux Server AUS (v. 6.2):
Source: dnsmasq-2.48-5.el6_2.2.src.rpm
x86_64: dnsmasq-2.48-5.el6_2.2.x86_64.rpm dnsmasq-debuginfo-2.48-5.el6_2.2.x86_64.rpm
Red Hat Enterprise Linux Server AUS (v. 6.4):
Source: dnsmasq-2.48-13.el6_4.1.src.rpm
x86_64: dnsmasq-2.48-13.el6_4.1.x86_64.rpm dnsmasq-debuginfo-2.48-13.el6_4.1.x86_64.rpm
Red Hat Enterprise Linux Server AUS (v. 6.5):
Source: dnsmasq-2.48-13.el6_5.1.src.rpm
x86_64: dnsmasq-2.48-13.el6_5.1.x86_64.rpm dnsmasq-debuginfo-2.48-13.el6_5.1.x86_64.rpm
Red Hat Enterprise Linux Server TUS (v. 6.5):
Source: dnsmasq-2.48-13.el6_5.1.src.rpm
x86_64: dnsmasq-2.48-13.el6_5.1.x86_64.rpm dnsmasq-debuginfo-2.48-13.el6_5.1.x86_64.rpm
Red Hat Enterprise Linux Server AUS (v. 6.6):
Source: dnsmasq-2.48-14.el6_6.1.src.rpm
x86_64: dnsmasq-2.48-14.el6_6.1.x86_64.rpm dnsmasq-debuginfo-2.48-14.el6_6.1.x86_64.rpm
Red Hat Enterprise Linux Server TUS (v. 6.6):
Source: dnsmasq-2.48-14.el6_6.1.src.rpm
x86_64: dnsmasq-2.48-14.el6_6.1.x86_64.rpm dnsmasq-debuginfo-2.48-14.el6_6.1.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 6.7):
Source: dnsmasq-2.48-16.el6_7.1.src.rpm
i386: dnsmasq-2.48-16.el6_7.1.i686.rpm dnsmasq-debuginfo-2.48-16.el6_7.1.i686.rpm
ppc64: dnsmasq-2.48-16.el6_7.1.ppc64.rpm dnsmasq-debuginfo-2.48-16.el6_7.1.ppc64.rpm
s390x: dnsmasq-2.48-16.el6_7.1.s390x.rpm dnsmasq-debuginfo-2.48-16.el6_7.1.s390x.rpm
x86_64: dnsmasq-2.48-16.el6_7.1.x86_64.rpm dnsmasq-debuginfo-2.48-16.el6_7.1.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 6.4):
Source: dnsmasq-2.48-13.el6_4.1.src.rpm
x86_64: dnsmasq-debuginfo-2.48-13.el6_4.1.x86_64.rpm dnsmasq-utils-2.48-13.el6_4.1.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 6.5):
Source: dnsmasq-2.48-13.el6_5.1.src.rpm
x86_64: dnsmasq-debuginfo-2.48-13.el6_5.1.x86_64.rpm dnsmasq-utils-2.48-13.el6_5.1.x86_64.rpm
Red Hat Enterprise Linux Server Optional TUS (v. 6.5):
Source: dnsmasq-2.48-13.el6_5.1.src.rpm
x86_64: dnsmasq-debuginfo-2.48-13.el6_5.1.x86_64.rpm dnsmasq-utils-2.48-13.el6_5.1.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 6.6):
x86_64: dnsmasq-debuginfo-2.48-14.el6_6.1.x86_64.rpm dnsmasq-utils-2.48-14.el6_6.1.x86_64.rpm
Red Hat Enterprise Linux Server Optional TUS (v. 6.6):
x86_64: dnsmasq-debuginfo-2.48-14.el6_6.1.x86_64.rpm dnsmasq-utils-2.48-14.el6_6.1.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 6.7):
i386: dnsmasq-debuginfo-2.48-16.el6_7.1.i686.rpm dnsmasq-utils-2.48-16.el6_7.1.i686.rpm
ppc64: dnsmasq-debuginfo-2.48-16.el6_7.1.ppc64.rpm dnsmasq-utils-2.48-16.el6_7.1.ppc64.rpm
s390x: dnsmasq-debuginfo-2.48-16.el6_7.1.s390x.rpm dnsmasq-utils-2.48-16.el6_7.1.s390x.rpm
x86_64: dnsmasq-debuginfo-2.48-16.el6_7.1.x86_64.rpm dnsmasq-utils-2.48-16.el6_7.1.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
- References:
https://access.redhat.com/security/cve/CVE-2017-14491 https://access.redhat.com/security/updates/classification/#critical https://access.redhat.com/security/vulnerabilities/3199382
- Contact:
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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-- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce
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"data": "Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response. Dnsmasq versions 2.77 and earlier contains multiple vulnerabilities. dnsmasq Exists in a buffer error vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. Multiple Siemens SCALANCE Products are prone to the following security vulnerabilities:\n1. A buffer-overflow vulnerability\n2. \nThis BID is being retired as a duplicate of BID 101085 Dnsmasq VU#973527 Multiple Security Vulnerabilities. \n===========================================================================\nUbuntu Security Notice USN-3430-3\nJanuary 04, 2018\n\ndnsmasq regression\n===========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 12.04 ESM\n\nSummary:\n\nUSN-3430-2 introduced regression in Dnsmasq. \n\nSoftware Description:\n- dnsmasq: Small caching DNS proxy and DHCP/TFTP server\n\nDetails:\n\nUSN-3430-2 fixed several vulnerabilities. The update introduced a new\nregression that breaks DNS resolution. This update addresses the\nproblem. \n\nWe apologize for the inconvenience. \n\nOriginal advisory details:\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. \n(CVE-2017-14491)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled IPv6 router\nadvertisements. (CVE-2017-14492)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 requests. \n(CVE-2017-14493)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 packets. A remote\nattacker could use this issue to possibly obtain sensitive memory\ncontents. (CVE-2017-14494)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. A remote\nattacker could use this issue to cause Dnsmasq to consume memory,\nresulting in a denial of service. (CVE-2017-14495)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14496)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 12.04 ESM:\n dnsmasq=C2=A02.59-4ubuntu0.4\n dnsmasq-base2.59-4ubuntu0.4\n dnsmasq-utils2.59-4ubuntu0.4\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. 6) - i386, x86_64\n\n3. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1\n\n=====================================================================\n Red Hat Security Advisory\n\nSynopsis: Critical: dnsmasq security update\nAdvisory ID: RHSA-2017:2839-01\nProduct: Red Hat Enterprise Linux\nAdvisory URL: https://access.redhat.com/errata/RHSA-2017:2839\nIssue date: 2017-10-02\nCVE Names: CVE-2017-14491 \n=====================================================================\n\n1. Summary:\n\nAn update for dnsmasq is now available for Red Hat Enterprise Linux 6.2\nAdvanced Update Support, Red Hat Enterprise Linux 6.4 Advanced Update\nSupport, Red Hat Enterprise Linux 6.5 Advanced Update Support, Red Hat\nEnterprise Linux 6.5 Telco Extended Update Support, Red Hat Enterprise\nLinux 6.6 Advanced Update Support, Red Hat Enterprise Linux 6.6 Telco\nExtended Update Support, and Red Hat Enterprise Linux 6.7 Extended Update\nSupport. \n\nRed Hat Product Security has rated this update as having a security impact\nof Critical. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Enterprise Linux HPC Node EUS (v. 6.7) - x86_64\nRed Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) - x86_64\nRed Hat Enterprise Linux Server AUS (v. 6.2) - x86_64\nRed Hat Enterprise Linux Server AUS (v. 6.4) - x86_64\nRed Hat Enterprise Linux Server AUS (v. 6.5) - x86_64\nRed Hat Enterprise Linux Server AUS (v. 6.6) - x86_64\nRed Hat Enterprise Linux Server EUS (v. 6.7) - i386, ppc64, s390x, x86_64\nRed Hat Enterprise Linux Server Optional AUS (v. 6.4) - x86_64\nRed Hat Enterprise Linux Server Optional AUS (v. 6.5) - x86_64\nRed Hat Enterprise Linux Server Optional AUS (v. 6.6) - x86_64\nRed Hat Enterprise Linux Server Optional EUS (v. 6.7) - i386, ppc64, s390x, x86_64\nRed Hat Enterprise Linux Server Optional TUS (v. 6.5) - x86_64\nRed Hat Enterprise Linux Server Optional TUS (v. 6.6) - x86_64\nRed Hat Enterprise Linux Server TUS (v. 6.5) - x86_64\nRed Hat Enterprise Linux Server TUS (v. 6.6) - x86_64\n\n3. Description:\n\nThe dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name\nServer) forwarder and DHCP (Dynamic Host Configuration Protocol) server. \n\nSecurity Fix(es):\n\n* A heap buffer overflow was found in dnsmasq in the code responsible for\nbuilding DNS replies. \n(CVE-2017-14491)\n\nRed Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J. \nSerna (Google Security Team), Gabriel Campana (Google Security Team), Kevin\nHamacher (Google Security Team), and Ron Bowes (Google Security Team) for\nreporting this issue. \n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1495409 - CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies\n\n6. Package List:\n\nRed Hat Enterprise Linux HPC Node EUS (v. 6.7):\n\nSource:\ndnsmasq-2.48-16.el6_7.1.src.rpm\n\nx86_64:\ndnsmasq-2.48-16.el6_7.1.x86_64.rpm\ndnsmasq-debuginfo-2.48-16.el6_7.1.x86_64.rpm\n\nRed Hat Enterprise Linux HPC Node Optional EUS (v. 6.7):\n\nx86_64:\ndnsmasq-debuginfo-2.48-16.el6_7.1.x86_64.rpm\ndnsmasq-utils-2.48-16.el6_7.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server AUS (v. 6.2):\n\nSource:\ndnsmasq-2.48-5.el6_2.2.src.rpm\n\nx86_64:\ndnsmasq-2.48-5.el6_2.2.x86_64.rpm\ndnsmasq-debuginfo-2.48-5.el6_2.2.x86_64.rpm\n\nRed Hat Enterprise Linux Server AUS (v. 6.4):\n\nSource:\ndnsmasq-2.48-13.el6_4.1.src.rpm\n\nx86_64:\ndnsmasq-2.48-13.el6_4.1.x86_64.rpm\ndnsmasq-debuginfo-2.48-13.el6_4.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server AUS (v. 6.5):\n\nSource:\ndnsmasq-2.48-13.el6_5.1.src.rpm\n\nx86_64:\ndnsmasq-2.48-13.el6_5.1.x86_64.rpm\ndnsmasq-debuginfo-2.48-13.el6_5.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server TUS (v. 6.5):\n\nSource:\ndnsmasq-2.48-13.el6_5.1.src.rpm\n\nx86_64:\ndnsmasq-2.48-13.el6_5.1.x86_64.rpm\ndnsmasq-debuginfo-2.48-13.el6_5.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server AUS (v. 6.6):\n\nSource:\ndnsmasq-2.48-14.el6_6.1.src.rpm\n\nx86_64:\ndnsmasq-2.48-14.el6_6.1.x86_64.rpm\ndnsmasq-debuginfo-2.48-14.el6_6.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server TUS (v. 6.6):\n\nSource:\ndnsmasq-2.48-14.el6_6.1.src.rpm\n\nx86_64:\ndnsmasq-2.48-14.el6_6.1.x86_64.rpm\ndnsmasq-debuginfo-2.48-14.el6_6.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server EUS (v. 6.7):\n\nSource:\ndnsmasq-2.48-16.el6_7.1.src.rpm\n\ni386:\ndnsmasq-2.48-16.el6_7.1.i686.rpm\ndnsmasq-debuginfo-2.48-16.el6_7.1.i686.rpm\n\nppc64:\ndnsmasq-2.48-16.el6_7.1.ppc64.rpm\ndnsmasq-debuginfo-2.48-16.el6_7.1.ppc64.rpm\n\ns390x:\ndnsmasq-2.48-16.el6_7.1.s390x.rpm\ndnsmasq-debuginfo-2.48-16.el6_7.1.s390x.rpm\n\nx86_64:\ndnsmasq-2.48-16.el6_7.1.x86_64.rpm\ndnsmasq-debuginfo-2.48-16.el6_7.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional AUS (v. 6.4):\n\nSource:\ndnsmasq-2.48-13.el6_4.1.src.rpm\n\nx86_64:\ndnsmasq-debuginfo-2.48-13.el6_4.1.x86_64.rpm\ndnsmasq-utils-2.48-13.el6_4.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional AUS (v. 6.5):\n\nSource:\ndnsmasq-2.48-13.el6_5.1.src.rpm\n\nx86_64:\ndnsmasq-debuginfo-2.48-13.el6_5.1.x86_64.rpm\ndnsmasq-utils-2.48-13.el6_5.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional TUS (v. 6.5):\n\nSource:\ndnsmasq-2.48-13.el6_5.1.src.rpm\n\nx86_64:\ndnsmasq-debuginfo-2.48-13.el6_5.1.x86_64.rpm\ndnsmasq-utils-2.48-13.el6_5.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional AUS (v. 6.6):\n\nx86_64:\ndnsmasq-debuginfo-2.48-14.el6_6.1.x86_64.rpm\ndnsmasq-utils-2.48-14.el6_6.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional TUS (v. 6.6):\n\nx86_64:\ndnsmasq-debuginfo-2.48-14.el6_6.1.x86_64.rpm\ndnsmasq-utils-2.48-14.el6_6.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional EUS (v. 6.7):\n\ni386:\ndnsmasq-debuginfo-2.48-16.el6_7.1.i686.rpm\ndnsmasq-utils-2.48-16.el6_7.1.i686.rpm\n\nppc64:\ndnsmasq-debuginfo-2.48-16.el6_7.1.ppc64.rpm\ndnsmasq-utils-2.48-16.el6_7.1.ppc64.rpm\n\ns390x:\ndnsmasq-debuginfo-2.48-16.el6_7.1.s390x.rpm\ndnsmasq-utils-2.48-16.el6_7.1.s390x.rpm\n\nx86_64:\ndnsmasq-debuginfo-2.48-16.el6_7.1.x86_64.rpm\ndnsmasq-utils-2.48-16.el6_7.1.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security. Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2017-14491\nhttps://access.redhat.com/security/updates/classification/#critical\nhttps://access.redhat.com/security/vulnerabilities/3199382\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2017 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n\niD8DBQFZ0nLUXlSAg2UNWIIRAn39AKDCsn16dEmmA7DazjU2IOpWLIFp8QCeODoG\n7t7GGwkabW2pC2Wcr35n/G8=\n=S/6b\n-----END PGP SIGNATURE-----\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://www.redhat.com/mailman/listinfo/rhsa-announce\n",
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VAR-201710-0448
Vulnerability from variot - Updated: 2023-12-26 00:11Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted IPv6 router advertisement request. Dnsmasq versions 2.77 and earlier contains multiple vulnerabilities. dnsmasq Contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Attackers can exploit these issues to execute arbitrary code within the context of the affected application, bypass the ASLR, gain sensitive information, or cause a denial-of-service condition. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Critical: dnsmasq security update Advisory ID: RHSA-2017:2836-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:2836 Issue date: 2017-10-02 CVE Names: CVE-2017-14491 CVE-2017-14492 CVE-2017-14493 CVE-2017-14494 CVE-2017-14495 CVE-2017-14496 =====================================================================
- Summary:
An update for dnsmasq is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
- Description:
The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.
Security Fix(es):
-
A heap buffer overflow was found in dnsmasq in the code responsible for building DNS replies. This issue only affected configurations using one of these options: enable-ra, ra-only, slaac, ra-names, ra-advrouter, or ra-stateless. (CVE-2017-14492)
-
A stack buffer overflow was found in dnsmasq in the DHCPv6 code. (CVE-2017-14493)
-
An information leak was found in dnsmasq in the DHCPv6 relay code. An attacker on the local network could send crafted DHCPv6 packets to dnsmasq causing it to forward the contents of process memory, potentially leaking sensitive data. (CVE-2017-14494)
-
A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets which would trigger memory allocations which would never be freed, leading to unbounded memory consumption and eventually a crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet. (CVE-2017-14495)
-
An integer underflow flaw leading to a buffer over-read was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet. (CVE-2017-14496)
Red Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J. Serna (Google Security Team), Gabriel Campana (Google Security Team), Kevin Hamacher (Google Security Team), and Ron Bowes (Google Security Team) for reporting these issues.
- Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
- Bugs fixed (https://bugzilla.redhat.com/):
1495409 - CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies 1495410 - CVE-2017-14492 dnsmasq: heap overflow in the IPv6 router advertisement code 1495411 - CVE-2017-14493 dnsmasq: stack buffer overflow in the DHCPv6 code 1495412 - CVE-2017-14494 dnsmasq: information leak in the DHCPv6 relay code 1495415 - CVE-2017-14495 dnsmasq: memory exhaustion vulnerability in the EDNS0 code 1495416 - CVE-2017-14496 dnsmasq: integer underflow leading to buffer over-read in the EDNS0 code
- Package List:
Red Hat Enterprise Linux Client (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
aarch64: dnsmasq-2.76-2.el7_4.2.aarch64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm
ppc64: dnsmasq-2.76-2.el7_4.2.ppc64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm
ppc64le: dnsmasq-2.76-2.el7_4.2.ppc64le.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm
s390x: dnsmasq-2.76-2.el7_4.2.s390x.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
aarch64: dnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm dnsmasq-utils-2.76-2.el7_4.2.aarch64.rpm
ppc64: dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm dnsmasq-utils-2.76-2.el7_4.2.ppc64.rpm
ppc64le: dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm dnsmasq-utils-2.76-2.el7_4.2.ppc64le.rpm
s390x: dnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm dnsmasq-utils-2.76-2.el7_4.2.s390x.rpm
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
- References:
https://access.redhat.com/security/cve/CVE-2017-14491 https://access.redhat.com/security/cve/CVE-2017-14492 https://access.redhat.com/security/cve/CVE-2017-14493 https://access.redhat.com/security/cve/CVE-2017-14494 https://access.redhat.com/security/cve/CVE-2017-14495 https://access.redhat.com/security/cve/CVE-2017-14496 https://access.redhat.com/security/updates/classification/#critical https://access.redhat.com/security/vulnerabilities/3199382
- Contact:
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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-- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . =========================================================================== Ubuntu Security Notice USN-3430-3 January 04, 2018
dnsmasq regression
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Summary:
USN-3430-2 introduced regression in Dnsmasq.
Software Description: - dnsmasq: Small caching DNS proxy and DHCP/TFTP server
Details:
USN-3430-2 fixed several vulnerabilities. The update introduced a new regression that breaks DNS resolution. This update addresses the problem.
We apologize for the inconvenience.
Original advisory details:
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14491)
Felix Wilhelm, Fermin J. (CVE-2017-14492)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DHCPv6 requests. (CVE-2017-14493)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DHCPv6 packets. (CVE-2017-14494)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. A remote attacker could use this issue to cause Dnsmasq to consume memory, resulting in a denial of service. (CVE-2017-14495)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14496)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 12.04 ESM: dnsmasq=C2=A02.59-4ubuntu0.4 dnsmasq-base2.59-4ubuntu0.4 dnsmasq-utils2.59-4ubuntu0.4
After a standard system update you need to reboot your computer to make all the necessary changes. 7.3) - ppc64, ppc64le, s390x, x86_64
-
Gentoo Linux Security Advisory GLSA 201710-27
https://security.gentoo.org/
Severity: Normal Title: Dnsmasq: Multiple vulnerabilities Date: October 23, 2017 Bugs: #632692 ID: 201710-27
Synopsis
Multiple vulnerabilities have been found in Dnsmasq, the worst of which may allow remote attackers to execute arbitrary code.
Affected packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-dns/dnsmasq < 2.78 >= 2.78
Description
Multiple vulnerabilities have been discovered in Dnsmasq.
Workaround
There is no known workaround at this time.
Resolution
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.78"
References
[ 1 ] CVE-2017-14491 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14491 [ 2 ] CVE-2017-14492 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14492 [ 3 ] CVE-2017-14493 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14493 [ 4 ] CVE-2017-14494 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14494 [ 5 ] CVE-2017-14495 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14495 [ 6 ] CVE-2017-14496 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14496
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/201710-27
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2017 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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"data": "Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted IPv6 router advertisement request. Dnsmasq versions 2.77 and earlier contains multiple vulnerabilities. dnsmasq Contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. \nAttackers can exploit these issues to execute arbitrary code within the context of the affected application, bypass the ASLR, gain sensitive information, or cause a denial-of-service condition. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1\n\n=====================================================================\n Red Hat Security Advisory\n\nSynopsis: Critical: dnsmasq security update\nAdvisory ID: RHSA-2017:2836-01\nProduct: Red Hat Enterprise Linux\nAdvisory URL: https://access.redhat.com/errata/RHSA-2017:2836\nIssue date: 2017-10-02\nCVE Names: CVE-2017-14491 CVE-2017-14492 CVE-2017-14493 \n CVE-2017-14494 CVE-2017-14495 CVE-2017-14496 \n=====================================================================\n\n1. Summary:\n\nAn update for dnsmasq is now available for Red Hat Enterprise Linux 7. \n\nRed Hat Product Security has rated this update as having a security impact\nof Critical. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Enterprise Linux Client (v. 7) - x86_64\nRed Hat Enterprise Linux Client Optional (v. 7) - x86_64\nRed Hat Enterprise Linux ComputeNode (v. 7) - x86_64\nRed Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64\nRed Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux Workstation (v. 7) - x86_64\nRed Hat Enterprise Linux Workstation Optional (v. 7) - x86_64\n\n3. Description:\n\nThe dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name\nServer) forwarder and DHCP (Dynamic Host Configuration Protocol) server. \n\nSecurity Fix(es):\n\n* A heap buffer overflow was found in dnsmasq in the code responsible for\nbuilding DNS replies. This issue only affected\nconfigurations using one of these options: enable-ra, ra-only, slaac,\nra-names, ra-advrouter, or ra-stateless. (CVE-2017-14492)\n\n* A stack buffer overflow was found in dnsmasq in the DHCPv6 code. (CVE-2017-14493)\n\n* An information leak was found in dnsmasq in the DHCPv6 relay code. An\nattacker on the local network could send crafted DHCPv6 packets to dnsmasq\ncausing it to forward the contents of process memory, potentially leaking\nsensitive data. (CVE-2017-14494)\n\n* A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An\nattacker could send crafted DNS packets which would trigger memory\nallocations which would never be freed, leading to unbounded memory\nconsumption and eventually a crash. This issue only affected configurations\nusing one of the options: add-mac, add-cpe-id, or add-subnet. \n(CVE-2017-14495)\n\n* An integer underflow flaw leading to a buffer over-read was found in\ndnsmasq in the EDNS0 code. An attacker could send crafted DNS packets to\ndnsmasq which would cause it to crash. This issue only affected\nconfigurations using one of the options: add-mac, add-cpe-id, or\nadd-subnet. (CVE-2017-14496)\n\nRed Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J. \nSerna (Google Security Team), Gabriel Campana (Google Security Team), Kevin\nHamacher (Google Security Team), and Ron Bowes (Google Security Team) for\nreporting these issues. \n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1495409 - CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies\n1495410 - CVE-2017-14492 dnsmasq: heap overflow in the IPv6 router advertisement code\n1495411 - CVE-2017-14493 dnsmasq: stack buffer overflow in the DHCPv6 code\n1495412 - CVE-2017-14494 dnsmasq: information leak in the DHCPv6 relay code\n1495415 - CVE-2017-14495 dnsmasq: memory exhaustion vulnerability in the EDNS0 code\n1495416 - CVE-2017-14496 dnsmasq: integer underflow leading to buffer over-read in the EDNS0 code\n\n6. Package List:\n\nRed Hat Enterprise Linux Client (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Client Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Server (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\naarch64:\ndnsmasq-2.76-2.el7_4.2.aarch64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm\n\nppc64:\ndnsmasq-2.76-2.el7_4.2.ppc64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm\n\nppc64le:\ndnsmasq-2.76-2.el7_4.2.ppc64le.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm\n\ns390x:\ndnsmasq-2.76-2.el7_4.2.s390x.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional (v. 7):\n\naarch64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.aarch64.rpm\n\nppc64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.ppc64.rpm\n\nppc64le:\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm\ndnsmasq-utils-2.76-2.el7_4.2.ppc64le.rpm\n\ns390x:\ndnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm\ndnsmasq-utils-2.76-2.el7_4.2.s390x.rpm\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security. Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2017-14491\nhttps://access.redhat.com/security/cve/CVE-2017-14492\nhttps://access.redhat.com/security/cve/CVE-2017-14493\nhttps://access.redhat.com/security/cve/CVE-2017-14494\nhttps://access.redhat.com/security/cve/CVE-2017-14495\nhttps://access.redhat.com/security/cve/CVE-2017-14496\nhttps://access.redhat.com/security/updates/classification/#critical\nhttps://access.redhat.com/security/vulnerabilities/3199382\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2017 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n\niD8DBQFZ0opYXlSAg2UNWIIRAr0dAJ9rIL1FgNTJUf2I9jjKFFlfkCd/kwCfV+bX\nSfoCV7+qG2nwqlHKLZOlhIU=\n=iWfU\n-----END PGP SIGNATURE-----\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://www.redhat.com/mailman/listinfo/rhsa-announce\n. \n===========================================================================\nUbuntu Security Notice USN-3430-3\nJanuary 04, 2018\n\ndnsmasq regression\n===========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 12.04 ESM\n\nSummary:\n\nUSN-3430-2 introduced regression in Dnsmasq. \n\nSoftware Description:\n- dnsmasq: Small caching DNS proxy and DHCP/TFTP server\n\nDetails:\n\nUSN-3430-2 fixed several vulnerabilities. The update introduced a new\nregression that breaks DNS resolution. This update addresses the\nproblem. \n\nWe apologize for the inconvenience. \n\nOriginal advisory details:\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. \n(CVE-2017-14491)\n\nFelix Wilhelm, Fermin J. (CVE-2017-14492)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 requests. \n(CVE-2017-14493)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 packets. (CVE-2017-14494)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. A remote\nattacker could use this issue to cause Dnsmasq to consume memory,\nresulting in a denial of service. (CVE-2017-14495)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14496)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 12.04 ESM:\n dnsmasq=C2=A02.59-4ubuntu0.4\n dnsmasq-base2.59-4ubuntu0.4\n dnsmasq-utils2.59-4ubuntu0.4\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. 7.3) - ppc64, ppc64le, s390x, x86_64\n\n3. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nGentoo Linux Security Advisory GLSA 201710-27\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n https://security.gentoo.org/\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\n Severity: Normal\n Title: Dnsmasq: Multiple vulnerabilities\n Date: October 23, 2017\n Bugs: #632692\n ID: 201710-27\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\nSynopsis\n========\n\nMultiple vulnerabilities have been found in Dnsmasq, the worst of which\nmay allow remote attackers to execute arbitrary code. \n\nAffected packages\n=================\n\n -------------------------------------------------------------------\n Package / Vulnerable / Unaffected\n -------------------------------------------------------------------\n 1 net-dns/dnsmasq \u003c 2.78 \u003e= 2.78 \n\nDescription\n===========\n\nMultiple vulnerabilities have been discovered in Dnsmasq. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll Dnsmasq users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot --verbose \"\u003e=net-dns/dnsmasq-2.78\"\n\nReferences\n==========\n\n[ 1 ] CVE-2017-14491\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14491\n[ 2 ] CVE-2017-14492\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14492\n[ 3 ] CVE-2017-14493\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14493\n[ 4 ] CVE-2017-14494\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14494\n[ 5 ] CVE-2017-14495\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14495\n[ 6 ] CVE-2017-14496\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14496\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n https://security.gentoo.org/glsa/201710-27\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2017 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttp://creativecommons.org/licenses/by-sa/2.5\n",
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VAR-201710-0452
Vulnerability from variot - Updated: 2023-12-26 00:11Integer underflow in the add_pseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request. Dnsmasq versions 2.77 and earlier contains multiple vulnerabilities. dnsmasq Contains an integer underflow vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. Multiple Siemens SCALANCE Products are prone to the following security vulnerabilities: 1. A buffer-overflow vulnerability 2. Multiple denial-of-service vulnerabilities Attackers can exploit these issues to execute arbitrary code within the context of affected device or cause a denial-of-service condition. This BID is being retired as a duplicate of BID 101085 Dnsmasq VU#973527 Multiple Security Vulnerabilities. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Critical: dnsmasq security update Advisory ID: RHSA-2017:2836-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:2836 Issue date: 2017-10-02 CVE Names: CVE-2017-14491 CVE-2017-14492 CVE-2017-14493 CVE-2017-14494 CVE-2017-14495 CVE-2017-14496 =====================================================================
- Summary:
An update for dnsmasq is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
- Description:
The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.
Security Fix(es):
-
A heap buffer overflow was found in dnsmasq in the code responsible for building DNS replies. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash or, potentially, execute arbitrary code. (CVE-2017-14491)
-
A heap buffer overflow was discovered in dnsmasq in the IPv6 router advertisement (RA) handling code. This issue only affected configurations using one of these options: enable-ra, ra-only, slaac, ra-names, ra-advrouter, or ra-stateless. (CVE-2017-14492)
-
A stack buffer overflow was found in dnsmasq in the DHCPv6 code. (CVE-2017-14493)
-
An information leak was found in dnsmasq in the DHCPv6 relay code. An attacker on the local network could send crafted DHCPv6 packets to dnsmasq causing it to forward the contents of process memory, potentially leaking sensitive data. (CVE-2017-14494)
-
A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets which would trigger memory allocations which would never be freed, leading to unbounded memory consumption and eventually a crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet. (CVE-2017-14495)
-
An integer underflow flaw leading to a buffer over-read was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet. (CVE-2017-14496)
Red Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J. Serna (Google Security Team), Gabriel Campana (Google Security Team), Kevin Hamacher (Google Security Team), and Ron Bowes (Google Security Team) for reporting these issues.
- Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
- Bugs fixed (https://bugzilla.redhat.com/):
1495409 - CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies 1495410 - CVE-2017-14492 dnsmasq: heap overflow in the IPv6 router advertisement code 1495411 - CVE-2017-14493 dnsmasq: stack buffer overflow in the DHCPv6 code 1495412 - CVE-2017-14494 dnsmasq: information leak in the DHCPv6 relay code 1495415 - CVE-2017-14495 dnsmasq: memory exhaustion vulnerability in the EDNS0 code 1495416 - CVE-2017-14496 dnsmasq: integer underflow leading to buffer over-read in the EDNS0 code
- Package List:
Red Hat Enterprise Linux Client (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
aarch64: dnsmasq-2.76-2.el7_4.2.aarch64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm
ppc64: dnsmasq-2.76-2.el7_4.2.ppc64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm
ppc64le: dnsmasq-2.76-2.el7_4.2.ppc64le.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm
s390x: dnsmasq-2.76-2.el7_4.2.s390x.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
aarch64: dnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm dnsmasq-utils-2.76-2.el7_4.2.aarch64.rpm
ppc64: dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm dnsmasq-utils-2.76-2.el7_4.2.ppc64.rpm
ppc64le: dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm dnsmasq-utils-2.76-2.el7_4.2.ppc64le.rpm
s390x: dnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm dnsmasq-utils-2.76-2.el7_4.2.s390x.rpm
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
- References:
https://access.redhat.com/security/cve/CVE-2017-14491 https://access.redhat.com/security/cve/CVE-2017-14492 https://access.redhat.com/security/cve/CVE-2017-14493 https://access.redhat.com/security/cve/CVE-2017-14494 https://access.redhat.com/security/cve/CVE-2017-14495 https://access.redhat.com/security/cve/CVE-2017-14496 https://access.redhat.com/security/updates/classification/#critical https://access.redhat.com/security/vulnerabilities/3199382
- Contact:
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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-- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . =========================================================================== Ubuntu Security Notice USN-3430-3 January 04, 2018
dnsmasq regression
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Summary:
USN-3430-2 introduced regression in Dnsmasq.
Software Description: - dnsmasq: Small caching DNS proxy and DHCP/TFTP server
Details:
USN-3430-2 fixed several vulnerabilities. The update introduced a new regression that breaks DNS resolution. This update addresses the problem.
We apologize for the inconvenience.
Original advisory details:
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14491)
Felix Wilhelm, Fermin J. (CVE-2017-14492)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DHCPv6 requests. (CVE-2017-14493)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DHCPv6 packets. (CVE-2017-14494)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14495)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14496)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 12.04 ESM: dnsmasq=C2=A02.59-4ubuntu0.4 dnsmasq-base2.59-4ubuntu0.4 dnsmasq-utils2.59-4ubuntu0.4
After a standard system update you need to reboot your computer to make all the necessary changes.
Affected packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-dns/dnsmasq < 2.78 >= 2.78
Description
Multiple vulnerabilities have been discovered in Dnsmasq.
Workaround
There is no known workaround at this time.
Resolution
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.78"
References
[ 1 ] CVE-2017-14491 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14491 [ 2 ] CVE-2017-14492 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14492 [ 3 ] CVE-2017-14493 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14493 [ 4 ] CVE-2017-14494 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14494 [ 5 ] CVE-2017-14495 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14495 [ 6 ] CVE-2017-14496 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14496
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/201710-27
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2017 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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"data": "Integer underflow in the add_pseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request. Dnsmasq versions 2.77 and earlier contains multiple vulnerabilities. dnsmasq Contains an integer underflow vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. Multiple Siemens SCALANCE Products are prone to the following security vulnerabilities:\n1. A buffer-overflow vulnerability\n2. Multiple denial-of-service vulnerabilities\nAttackers can exploit these issues to execute arbitrary code within the context of affected device or cause a denial-of-service condition. \nThis BID is being retired as a duplicate of BID 101085 Dnsmasq VU#973527 Multiple Security Vulnerabilities. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1\n\n=====================================================================\n Red Hat Security Advisory\n\nSynopsis: Critical: dnsmasq security update\nAdvisory ID: RHSA-2017:2836-01\nProduct: Red Hat Enterprise Linux\nAdvisory URL: https://access.redhat.com/errata/RHSA-2017:2836\nIssue date: 2017-10-02\nCVE Names: CVE-2017-14491 CVE-2017-14492 CVE-2017-14493 \n CVE-2017-14494 CVE-2017-14495 CVE-2017-14496 \n=====================================================================\n\n1. Summary:\n\nAn update for dnsmasq is now available for Red Hat Enterprise Linux 7. \n\nRed Hat Product Security has rated this update as having a security impact\nof Critical. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Enterprise Linux Client (v. 7) - x86_64\nRed Hat Enterprise Linux Client Optional (v. 7) - x86_64\nRed Hat Enterprise Linux ComputeNode (v. 7) - x86_64\nRed Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64\nRed Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux Workstation (v. 7) - x86_64\nRed Hat Enterprise Linux Workstation Optional (v. 7) - x86_64\n\n3. Description:\n\nThe dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name\nServer) forwarder and DHCP (Dynamic Host Configuration Protocol) server. \n\nSecurity Fix(es):\n\n* A heap buffer overflow was found in dnsmasq in the code responsible for\nbuilding DNS replies. An attacker could send crafted DNS packets to dnsmasq\nwhich would cause it to crash or, potentially, execute arbitrary code. \n(CVE-2017-14491)\n\n* A heap buffer overflow was discovered in dnsmasq in the IPv6 router\nadvertisement (RA) handling code. This issue only affected\nconfigurations using one of these options: enable-ra, ra-only, slaac,\nra-names, ra-advrouter, or ra-stateless. (CVE-2017-14492)\n\n* A stack buffer overflow was found in dnsmasq in the DHCPv6 code. (CVE-2017-14493)\n\n* An information leak was found in dnsmasq in the DHCPv6 relay code. An\nattacker on the local network could send crafted DHCPv6 packets to dnsmasq\ncausing it to forward the contents of process memory, potentially leaking\nsensitive data. (CVE-2017-14494)\n\n* A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An\nattacker could send crafted DNS packets which would trigger memory\nallocations which would never be freed, leading to unbounded memory\nconsumption and eventually a crash. This issue only affected configurations\nusing one of the options: add-mac, add-cpe-id, or add-subnet. \n(CVE-2017-14495)\n\n* An integer underflow flaw leading to a buffer over-read was found in\ndnsmasq in the EDNS0 code. An attacker could send crafted DNS packets to\ndnsmasq which would cause it to crash. This issue only affected\nconfigurations using one of the options: add-mac, add-cpe-id, or\nadd-subnet. (CVE-2017-14496)\n\nRed Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J. \nSerna (Google Security Team), Gabriel Campana (Google Security Team), Kevin\nHamacher (Google Security Team), and Ron Bowes (Google Security Team) for\nreporting these issues. \n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1495409 - CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies\n1495410 - CVE-2017-14492 dnsmasq: heap overflow in the IPv6 router advertisement code\n1495411 - CVE-2017-14493 dnsmasq: stack buffer overflow in the DHCPv6 code\n1495412 - CVE-2017-14494 dnsmasq: information leak in the DHCPv6 relay code\n1495415 - CVE-2017-14495 dnsmasq: memory exhaustion vulnerability in the EDNS0 code\n1495416 - CVE-2017-14496 dnsmasq: integer underflow leading to buffer over-read in the EDNS0 code\n\n6. Package List:\n\nRed Hat Enterprise Linux Client (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Client Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Server (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\naarch64:\ndnsmasq-2.76-2.el7_4.2.aarch64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm\n\nppc64:\ndnsmasq-2.76-2.el7_4.2.ppc64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm\n\nppc64le:\ndnsmasq-2.76-2.el7_4.2.ppc64le.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm\n\ns390x:\ndnsmasq-2.76-2.el7_4.2.s390x.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional (v. 7):\n\naarch64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.aarch64.rpm\n\nppc64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.ppc64.rpm\n\nppc64le:\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm\ndnsmasq-utils-2.76-2.el7_4.2.ppc64le.rpm\n\ns390x:\ndnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm\ndnsmasq-utils-2.76-2.el7_4.2.s390x.rpm\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security. Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2017-14491\nhttps://access.redhat.com/security/cve/CVE-2017-14492\nhttps://access.redhat.com/security/cve/CVE-2017-14493\nhttps://access.redhat.com/security/cve/CVE-2017-14494\nhttps://access.redhat.com/security/cve/CVE-2017-14495\nhttps://access.redhat.com/security/cve/CVE-2017-14496\nhttps://access.redhat.com/security/updates/classification/#critical\nhttps://access.redhat.com/security/vulnerabilities/3199382\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2017 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n\niD8DBQFZ0opYXlSAg2UNWIIRAr0dAJ9rIL1FgNTJUf2I9jjKFFlfkCd/kwCfV+bX\nSfoCV7+qG2nwqlHKLZOlhIU=\n=iWfU\n-----END PGP SIGNATURE-----\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://www.redhat.com/mailman/listinfo/rhsa-announce\n. \n===========================================================================\nUbuntu Security Notice USN-3430-3\nJanuary 04, 2018\n\ndnsmasq regression\n===========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 12.04 ESM\n\nSummary:\n\nUSN-3430-2 introduced regression in Dnsmasq. \n\nSoftware Description:\n- dnsmasq: Small caching DNS proxy and DHCP/TFTP server\n\nDetails:\n\nUSN-3430-2 fixed several vulnerabilities. The update introduced a new\nregression that breaks DNS resolution. This update addresses the\nproblem. \n\nWe apologize for the inconvenience. \n\nOriginal advisory details:\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. \n(CVE-2017-14491)\n\nFelix Wilhelm, Fermin J. (CVE-2017-14492)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 requests. \n(CVE-2017-14493)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 packets. (CVE-2017-14494)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14495)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14496)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 12.04 ESM:\n dnsmasq=C2=A02.59-4ubuntu0.4\n dnsmasq-base2.59-4ubuntu0.4\n dnsmasq-utils2.59-4ubuntu0.4\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. \n\nAffected packages\n=================\n\n -------------------------------------------------------------------\n Package / Vulnerable / Unaffected\n -------------------------------------------------------------------\n 1 net-dns/dnsmasq \u003c 2.78 \u003e= 2.78 \n\nDescription\n===========\n\nMultiple vulnerabilities have been discovered in Dnsmasq. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll Dnsmasq users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot --verbose \"\u003e=net-dns/dnsmasq-2.78\"\n\nReferences\n==========\n\n[ 1 ] CVE-2017-14491\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14491\n[ 2 ] CVE-2017-14492\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14492\n[ 3 ] CVE-2017-14493\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14493\n[ 4 ] CVE-2017-14494\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14494\n[ 5 ] CVE-2017-14495\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14495\n[ 6 ] CVE-2017-14496\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14496\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n https://security.gentoo.org/glsa/201710-27\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2017 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttp://creativecommons.org/licenses/by-sa/2.5\n",
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VAR-201710-0450
Vulnerability from variot - Updated: 2023-12-26 00:11dnsmasq before 2.78, when configured as a relay, allows remote attackers to obtain sensitive memory information via vectors involving handling DHCPv6 forwarded requests. Dnsmasq versions 2.77 and earlier contains multiple vulnerabilities. dnsmasq Contains an information disclosure vulnerability.Information may be obtained. Attackers can exploit these issues to execute arbitrary code within the context of the affected application, bypass the ASLR, gain sensitive information, or cause a denial-of-service condition. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Critical: dnsmasq security update Advisory ID: RHSA-2017:2836-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:2836 Issue date: 2017-10-02 CVE Names: CVE-2017-14491 CVE-2017-14492 CVE-2017-14493 CVE-2017-14494 CVE-2017-14495 CVE-2017-14496 =====================================================================
- Summary:
An update for dnsmasq is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
- Description:
The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.
Security Fix(es):
-
A heap buffer overflow was found in dnsmasq in the code responsible for building DNS replies. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash or, potentially, execute arbitrary code. (CVE-2017-14491)
-
A heap buffer overflow was discovered in dnsmasq in the IPv6 router advertisement (RA) handling code. An attacker on the local network segment could send crafted RAs to dnsmasq which would cause it to crash or, potentially, execute arbitrary code. This issue only affected configurations using one of these options: enable-ra, ra-only, slaac, ra-names, ra-advrouter, or ra-stateless. (CVE-2017-14492)
-
A stack buffer overflow was found in dnsmasq in the DHCPv6 code. An attacker on the local network could send a crafted DHCPv6 request to dnsmasq which would cause it to a crash or, potentially, execute arbitrary code. (CVE-2017-14493)
-
An information leak was found in dnsmasq in the DHCPv6 relay code. An attacker on the local network could send crafted DHCPv6 packets to dnsmasq causing it to forward the contents of process memory, potentially leaking sensitive data. (CVE-2017-14494)
-
A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets which would trigger memory allocations which would never be freed, leading to unbounded memory consumption and eventually a crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet. (CVE-2017-14495)
-
An integer underflow flaw leading to a buffer over-read was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet. (CVE-2017-14496)
Red Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J. Serna (Google Security Team), Gabriel Campana (Google Security Team), Kevin Hamacher (Google Security Team), and Ron Bowes (Google Security Team) for reporting these issues.
- Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
- Bugs fixed (https://bugzilla.redhat.com/):
1495409 - CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies 1495410 - CVE-2017-14492 dnsmasq: heap overflow in the IPv6 router advertisement code 1495411 - CVE-2017-14493 dnsmasq: stack buffer overflow in the DHCPv6 code 1495412 - CVE-2017-14494 dnsmasq: information leak in the DHCPv6 relay code 1495415 - CVE-2017-14495 dnsmasq: memory exhaustion vulnerability in the EDNS0 code 1495416 - CVE-2017-14496 dnsmasq: integer underflow leading to buffer over-read in the EDNS0 code
- Package List:
Red Hat Enterprise Linux Client (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
aarch64: dnsmasq-2.76-2.el7_4.2.aarch64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm
ppc64: dnsmasq-2.76-2.el7_4.2.ppc64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm
ppc64le: dnsmasq-2.76-2.el7_4.2.ppc64le.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm
s390x: dnsmasq-2.76-2.el7_4.2.s390x.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
aarch64: dnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm dnsmasq-utils-2.76-2.el7_4.2.aarch64.rpm
ppc64: dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm dnsmasq-utils-2.76-2.el7_4.2.ppc64.rpm
ppc64le: dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm dnsmasq-utils-2.76-2.el7_4.2.ppc64le.rpm
s390x: dnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm dnsmasq-utils-2.76-2.el7_4.2.s390x.rpm
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
- References:
https://access.redhat.com/security/cve/CVE-2017-14491 https://access.redhat.com/security/cve/CVE-2017-14492 https://access.redhat.com/security/cve/CVE-2017-14493 https://access.redhat.com/security/cve/CVE-2017-14494 https://access.redhat.com/security/cve/CVE-2017-14495 https://access.redhat.com/security/cve/CVE-2017-14496 https://access.redhat.com/security/updates/classification/#critical https://access.redhat.com/security/vulnerabilities/3199382
- Contact:
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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-- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . =========================================================================== Ubuntu Security Notice USN-3430-3 January 04, 2018
dnsmasq regression
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Summary:
USN-3430-2 introduced regression in Dnsmasq.
Software Description: - dnsmasq: Small caching DNS proxy and DHCP/TFTP server
Details:
USN-3430-2 fixed several vulnerabilities. The update introduced a new regression that breaks DNS resolution. This update addresses the problem.
We apologize for the inconvenience.
Original advisory details:
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14491)
Felix Wilhelm, Fermin J. (CVE-2017-14492)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DHCPv6 requests. (CVE-2017-14493)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DHCPv6 packets. (CVE-2017-14494)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. A remote attacker could use this issue to cause Dnsmasq to consume memory, resulting in a denial of service. (CVE-2017-14495)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. A remote attacker could use this issue to cause Dnsmasq to crash, resulting in a denial of service. (CVE-2017-14496)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 12.04 ESM: dnsmasq=C2=A02.59-4ubuntu0.4 dnsmasq-base2.59-4ubuntu0.4 dnsmasq-utils2.59-4ubuntu0.4
After a standard system update you need to reboot your computer to make all the necessary changes. 7.3) - ppc64, ppc64le, s390x, x86_64
-
Gentoo Linux Security Advisory GLSA 201710-27
https://security.gentoo.org/
Severity: Normal Title: Dnsmasq: Multiple vulnerabilities Date: October 23, 2017 Bugs: #632692 ID: 201710-27
Synopsis
Multiple vulnerabilities have been found in Dnsmasq, the worst of which may allow remote attackers to execute arbitrary code.
Affected packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-dns/dnsmasq < 2.78 >= 2.78
Description
Multiple vulnerabilities have been discovered in Dnsmasq.
Workaround
There is no known workaround at this time.
Resolution
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.78"
References
[ 1 ] CVE-2017-14491 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14491 [ 2 ] CVE-2017-14492 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14492 [ 3 ] CVE-2017-14493 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14493 [ 4 ] CVE-2017-14494 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14494 [ 5 ] CVE-2017-14495 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14495 [ 6 ] CVE-2017-14496 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14496
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/201710-27
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2017 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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"data": "dnsmasq before 2.78, when configured as a relay, allows remote attackers to obtain sensitive memory information via vectors involving handling DHCPv6 forwarded requests. Dnsmasq versions 2.77 and earlier contains multiple vulnerabilities. dnsmasq Contains an information disclosure vulnerability.Information may be obtained. \nAttackers can exploit these issues to execute arbitrary code within the context of the affected application, bypass the ASLR, gain sensitive information, or cause a denial-of-service condition. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1\n\n=====================================================================\n Red Hat Security Advisory\n\nSynopsis: Critical: dnsmasq security update\nAdvisory ID: RHSA-2017:2836-01\nProduct: Red Hat Enterprise Linux\nAdvisory URL: https://access.redhat.com/errata/RHSA-2017:2836\nIssue date: 2017-10-02\nCVE Names: CVE-2017-14491 CVE-2017-14492 CVE-2017-14493 \n CVE-2017-14494 CVE-2017-14495 CVE-2017-14496 \n=====================================================================\n\n1. Summary:\n\nAn update for dnsmasq is now available for Red Hat Enterprise Linux 7. \n\nRed Hat Product Security has rated this update as having a security impact\nof Critical. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Enterprise Linux Client (v. 7) - x86_64\nRed Hat Enterprise Linux Client Optional (v. 7) - x86_64\nRed Hat Enterprise Linux ComputeNode (v. 7) - x86_64\nRed Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64\nRed Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux Workstation (v. 7) - x86_64\nRed Hat Enterprise Linux Workstation Optional (v. 7) - x86_64\n\n3. Description:\n\nThe dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name\nServer) forwarder and DHCP (Dynamic Host Configuration Protocol) server. \n\nSecurity Fix(es):\n\n* A heap buffer overflow was found in dnsmasq in the code responsible for\nbuilding DNS replies. An attacker could send crafted DNS packets to dnsmasq\nwhich would cause it to crash or, potentially, execute arbitrary code. \n(CVE-2017-14491)\n\n* A heap buffer overflow was discovered in dnsmasq in the IPv6 router\nadvertisement (RA) handling code. An attacker on the local network segment\ncould send crafted RAs to dnsmasq which would cause it to crash or,\npotentially, execute arbitrary code. This issue only affected\nconfigurations using one of these options: enable-ra, ra-only, slaac,\nra-names, ra-advrouter, or ra-stateless. (CVE-2017-14492)\n\n* A stack buffer overflow was found in dnsmasq in the DHCPv6 code. An\nattacker on the local network could send a crafted DHCPv6 request to\ndnsmasq which would cause it to a crash or, potentially, execute arbitrary\ncode. (CVE-2017-14493)\n\n* An information leak was found in dnsmasq in the DHCPv6 relay code. An\nattacker on the local network could send crafted DHCPv6 packets to dnsmasq\ncausing it to forward the contents of process memory, potentially leaking\nsensitive data. (CVE-2017-14494)\n\n* A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An\nattacker could send crafted DNS packets which would trigger memory\nallocations which would never be freed, leading to unbounded memory\nconsumption and eventually a crash. This issue only affected configurations\nusing one of the options: add-mac, add-cpe-id, or add-subnet. \n(CVE-2017-14495)\n\n* An integer underflow flaw leading to a buffer over-read was found in\ndnsmasq in the EDNS0 code. An attacker could send crafted DNS packets to\ndnsmasq which would cause it to crash. This issue only affected\nconfigurations using one of the options: add-mac, add-cpe-id, or\nadd-subnet. (CVE-2017-14496)\n\nRed Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J. \nSerna (Google Security Team), Gabriel Campana (Google Security Team), Kevin\nHamacher (Google Security Team), and Ron Bowes (Google Security Team) for\nreporting these issues. \n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1495409 - CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies\n1495410 - CVE-2017-14492 dnsmasq: heap overflow in the IPv6 router advertisement code\n1495411 - CVE-2017-14493 dnsmasq: stack buffer overflow in the DHCPv6 code\n1495412 - CVE-2017-14494 dnsmasq: information leak in the DHCPv6 relay code\n1495415 - CVE-2017-14495 dnsmasq: memory exhaustion vulnerability in the EDNS0 code\n1495416 - CVE-2017-14496 dnsmasq: integer underflow leading to buffer over-read in the EDNS0 code\n\n6. Package List:\n\nRed Hat Enterprise Linux Client (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Client Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Server (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\naarch64:\ndnsmasq-2.76-2.el7_4.2.aarch64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm\n\nppc64:\ndnsmasq-2.76-2.el7_4.2.ppc64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm\n\nppc64le:\ndnsmasq-2.76-2.el7_4.2.ppc64le.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm\n\ns390x:\ndnsmasq-2.76-2.el7_4.2.s390x.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional (v. 7):\n\naarch64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.aarch64.rpm\n\nppc64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.ppc64.rpm\n\nppc64le:\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm\ndnsmasq-utils-2.76-2.el7_4.2.ppc64le.rpm\n\ns390x:\ndnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm\ndnsmasq-utils-2.76-2.el7_4.2.s390x.rpm\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security. Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2017-14491\nhttps://access.redhat.com/security/cve/CVE-2017-14492\nhttps://access.redhat.com/security/cve/CVE-2017-14493\nhttps://access.redhat.com/security/cve/CVE-2017-14494\nhttps://access.redhat.com/security/cve/CVE-2017-14495\nhttps://access.redhat.com/security/cve/CVE-2017-14496\nhttps://access.redhat.com/security/updates/classification/#critical\nhttps://access.redhat.com/security/vulnerabilities/3199382\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2017 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n\niD8DBQFZ0opYXlSAg2UNWIIRAr0dAJ9rIL1FgNTJUf2I9jjKFFlfkCd/kwCfV+bX\nSfoCV7+qG2nwqlHKLZOlhIU=\n=iWfU\n-----END PGP SIGNATURE-----\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://www.redhat.com/mailman/listinfo/rhsa-announce\n. \n===========================================================================\nUbuntu Security Notice USN-3430-3\nJanuary 04, 2018\n\ndnsmasq regression\n===========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 12.04 ESM\n\nSummary:\n\nUSN-3430-2 introduced regression in Dnsmasq. \n\nSoftware Description:\n- dnsmasq: Small caching DNS proxy and DHCP/TFTP server\n\nDetails:\n\nUSN-3430-2 fixed several vulnerabilities. The update introduced a new\nregression that breaks DNS resolution. This update addresses the\nproblem. \n\nWe apologize for the inconvenience. \n\nOriginal advisory details:\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. \n(CVE-2017-14491)\n\nFelix Wilhelm, Fermin J. (CVE-2017-14492)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 requests. \n(CVE-2017-14493)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 packets. (CVE-2017-14494)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. A remote\nattacker could use this issue to cause Dnsmasq to consume memory,\nresulting in a denial of service. (CVE-2017-14495)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. A remote\nattacker could use this issue to cause Dnsmasq to crash, resulting in\na denial of service. (CVE-2017-14496)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 12.04 ESM:\n dnsmasq=C2=A02.59-4ubuntu0.4\n dnsmasq-base2.59-4ubuntu0.4\n dnsmasq-utils2.59-4ubuntu0.4\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. 7.3) - ppc64, ppc64le, s390x, x86_64\n\n3. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nGentoo Linux Security Advisory GLSA 201710-27\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n https://security.gentoo.org/\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\n Severity: Normal\n Title: Dnsmasq: Multiple vulnerabilities\n Date: October 23, 2017\n Bugs: #632692\n ID: 201710-27\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\nSynopsis\n========\n\nMultiple vulnerabilities have been found in Dnsmasq, the worst of which\nmay allow remote attackers to execute arbitrary code. \n\nAffected packages\n=================\n\n -------------------------------------------------------------------\n Package / Vulnerable / Unaffected\n -------------------------------------------------------------------\n 1 net-dns/dnsmasq \u003c 2.78 \u003e= 2.78 \n\nDescription\n===========\n\nMultiple vulnerabilities have been discovered in Dnsmasq. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll Dnsmasq users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot --verbose \"\u003e=net-dns/dnsmasq-2.78\"\n\nReferences\n==========\n\n[ 1 ] CVE-2017-14491\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14491\n[ 2 ] CVE-2017-14492\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14492\n[ 3 ] CVE-2017-14493\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14493\n[ 4 ] CVE-2017-14494\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14494\n[ 5 ] CVE-2017-14495\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14495\n[ 6 ] CVE-2017-14496\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14496\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n https://security.gentoo.org/glsa/201710-27\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2017 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttp://creativecommons.org/licenses/by-sa/2.5\n",
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VAR-201710-0451
Vulnerability from variot - Updated: 2023-12-26 00:11Memory leak in dnsmasq before 2.78, when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service (memory consumption) via vectors involving DNS response creation. Dnsmasq versions 2.77 and earlier contains multiple vulnerabilities. dnsmasq Contains a resource management vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. Multiple Siemens SCALANCE Products are prone to the following security vulnerabilities: 1. A buffer-overflow vulnerability 2. Multiple denial-of-service vulnerabilities Attackers can exploit these issues to execute arbitrary code within the context of affected device or cause a denial-of-service condition. This BID is being retired as a duplicate of BID 101085 Dnsmasq VU#973527 Multiple Security Vulnerabilities. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Critical: dnsmasq security update Advisory ID: RHSA-2017:2836-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:2836 Issue date: 2017-10-02 CVE Names: CVE-2017-14491 CVE-2017-14492 CVE-2017-14493 CVE-2017-14494 CVE-2017-14495 CVE-2017-14496 =====================================================================
- Summary:
An update for dnsmasq is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
- Description:
The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.
Security Fix(es):
-
A heap buffer overflow was found in dnsmasq in the code responsible for building DNS replies. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash or, potentially, execute arbitrary code. (CVE-2017-14491)
-
A heap buffer overflow was discovered in dnsmasq in the IPv6 router advertisement (RA) handling code. This issue only affected configurations using one of these options: enable-ra, ra-only, slaac, ra-names, ra-advrouter, or ra-stateless. (CVE-2017-14492)
-
A stack buffer overflow was found in dnsmasq in the DHCPv6 code. (CVE-2017-14493)
-
An information leak was found in dnsmasq in the DHCPv6 relay code. An attacker on the local network could send crafted DHCPv6 packets to dnsmasq causing it to forward the contents of process memory, potentially leaking sensitive data. (CVE-2017-14494)
-
A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets which would trigger memory allocations which would never be freed, leading to unbounded memory consumption and eventually a crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet. (CVE-2017-14495)
-
An integer underflow flaw leading to a buffer over-read was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet. (CVE-2017-14496)
Red Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J. Serna (Google Security Team), Gabriel Campana (Google Security Team), Kevin Hamacher (Google Security Team), and Ron Bowes (Google Security Team) for reporting these issues.
- Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
- Bugs fixed (https://bugzilla.redhat.com/):
1495409 - CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies 1495410 - CVE-2017-14492 dnsmasq: heap overflow in the IPv6 router advertisement code 1495411 - CVE-2017-14493 dnsmasq: stack buffer overflow in the DHCPv6 code 1495412 - CVE-2017-14494 dnsmasq: information leak in the DHCPv6 relay code 1495415 - CVE-2017-14495 dnsmasq: memory exhaustion vulnerability in the EDNS0 code 1495416 - CVE-2017-14496 dnsmasq: integer underflow leading to buffer over-read in the EDNS0 code
- Package List:
Red Hat Enterprise Linux Client (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
aarch64: dnsmasq-2.76-2.el7_4.2.aarch64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm
ppc64: dnsmasq-2.76-2.el7_4.2.ppc64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm
ppc64le: dnsmasq-2.76-2.el7_4.2.ppc64le.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm
s390x: dnsmasq-2.76-2.el7_4.2.s390x.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
aarch64: dnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm dnsmasq-utils-2.76-2.el7_4.2.aarch64.rpm
ppc64: dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm dnsmasq-utils-2.76-2.el7_4.2.ppc64.rpm
ppc64le: dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm dnsmasq-utils-2.76-2.el7_4.2.ppc64le.rpm
s390x: dnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm dnsmasq-utils-2.76-2.el7_4.2.s390x.rpm
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
- References:
https://access.redhat.com/security/cve/CVE-2017-14491 https://access.redhat.com/security/cve/CVE-2017-14492 https://access.redhat.com/security/cve/CVE-2017-14493 https://access.redhat.com/security/cve/CVE-2017-14494 https://access.redhat.com/security/cve/CVE-2017-14495 https://access.redhat.com/security/cve/CVE-2017-14496 https://access.redhat.com/security/updates/classification/#critical https://access.redhat.com/security/vulnerabilities/3199382
- Contact:
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/
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-- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . =========================================================================== Ubuntu Security Notice USN-3430-3 January 04, 2018
dnsmasq regression
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Summary:
USN-3430-2 introduced regression in Dnsmasq.
Software Description: - dnsmasq: Small caching DNS proxy and DHCP/TFTP server
Details:
USN-3430-2 fixed several vulnerabilities. The update introduced a new regression that breaks DNS resolution. This update addresses the problem.
We apologize for the inconvenience.
Original advisory details:
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14491)
Felix Wilhelm, Fermin J. (CVE-2017-14492)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DHCPv6 requests. (CVE-2017-14493)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DHCPv6 packets. (CVE-2017-14494)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14495)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. A remote attacker could use this issue to cause Dnsmasq to crash, resulting in a denial of service. (CVE-2017-14496)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 12.04 ESM: dnsmasq=C2=A02.59-4ubuntu0.4 dnsmasq-base2.59-4ubuntu0.4 dnsmasq-utils2.59-4ubuntu0.4
After a standard system update you need to reboot your computer to make all the necessary changes.
Affected packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-dns/dnsmasq < 2.78 >= 2.78
Description
Multiple vulnerabilities have been discovered in Dnsmasq.
Workaround
There is no known workaround at this time.
Resolution
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.78"
References
[ 1 ] CVE-2017-14491 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14491 [ 2 ] CVE-2017-14492 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14492 [ 3 ] CVE-2017-14493 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14493 [ 4 ] CVE-2017-14494 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14494 [ 5 ] CVE-2017-14495 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14495 [ 6 ] CVE-2017-14496 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14496
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/201710-27
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2017 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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"data": "Memory leak in dnsmasq before 2.78, when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service (memory consumption) via vectors involving DNS response creation. Dnsmasq versions 2.77 and earlier contains multiple vulnerabilities. dnsmasq Contains a resource management vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. Multiple Siemens SCALANCE Products are prone to the following security vulnerabilities:\n1. A buffer-overflow vulnerability\n2. Multiple denial-of-service vulnerabilities\nAttackers can exploit these issues to execute arbitrary code within the context of affected device or cause a denial-of-service condition. \nThis BID is being retired as a duplicate of BID 101085 Dnsmasq VU#973527 Multiple Security Vulnerabilities. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1\n\n=====================================================================\n Red Hat Security Advisory\n\nSynopsis: Critical: dnsmasq security update\nAdvisory ID: RHSA-2017:2836-01\nProduct: Red Hat Enterprise Linux\nAdvisory URL: https://access.redhat.com/errata/RHSA-2017:2836\nIssue date: 2017-10-02\nCVE Names: CVE-2017-14491 CVE-2017-14492 CVE-2017-14493 \n CVE-2017-14494 CVE-2017-14495 CVE-2017-14496 \n=====================================================================\n\n1. Summary:\n\nAn update for dnsmasq is now available for Red Hat Enterprise Linux 7. \n\nRed Hat Product Security has rated this update as having a security impact\nof Critical. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Enterprise Linux Client (v. 7) - x86_64\nRed Hat Enterprise Linux Client Optional (v. 7) - x86_64\nRed Hat Enterprise Linux ComputeNode (v. 7) - x86_64\nRed Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64\nRed Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux Workstation (v. 7) - x86_64\nRed Hat Enterprise Linux Workstation Optional (v. 7) - x86_64\n\n3. Description:\n\nThe dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name\nServer) forwarder and DHCP (Dynamic Host Configuration Protocol) server. \n\nSecurity Fix(es):\n\n* A heap buffer overflow was found in dnsmasq in the code responsible for\nbuilding DNS replies. An attacker could send crafted DNS packets to dnsmasq\nwhich would cause it to crash or, potentially, execute arbitrary code. \n(CVE-2017-14491)\n\n* A heap buffer overflow was discovered in dnsmasq in the IPv6 router\nadvertisement (RA) handling code. This issue only affected\nconfigurations using one of these options: enable-ra, ra-only, slaac,\nra-names, ra-advrouter, or ra-stateless. (CVE-2017-14492)\n\n* A stack buffer overflow was found in dnsmasq in the DHCPv6 code. (CVE-2017-14493)\n\n* An information leak was found in dnsmasq in the DHCPv6 relay code. An\nattacker on the local network could send crafted DHCPv6 packets to dnsmasq\ncausing it to forward the contents of process memory, potentially leaking\nsensitive data. (CVE-2017-14494)\n\n* A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An\nattacker could send crafted DNS packets which would trigger memory\nallocations which would never be freed, leading to unbounded memory\nconsumption and eventually a crash. This issue only affected configurations\nusing one of the options: add-mac, add-cpe-id, or add-subnet. \n(CVE-2017-14495)\n\n* An integer underflow flaw leading to a buffer over-read was found in\ndnsmasq in the EDNS0 code. An attacker could send crafted DNS packets to\ndnsmasq which would cause it to crash. This issue only affected\nconfigurations using one of the options: add-mac, add-cpe-id, or\nadd-subnet. (CVE-2017-14496)\n\nRed Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J. \nSerna (Google Security Team), Gabriel Campana (Google Security Team), Kevin\nHamacher (Google Security Team), and Ron Bowes (Google Security Team) for\nreporting these issues. \n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1495409 - CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies\n1495410 - CVE-2017-14492 dnsmasq: heap overflow in the IPv6 router advertisement code\n1495411 - CVE-2017-14493 dnsmasq: stack buffer overflow in the DHCPv6 code\n1495412 - CVE-2017-14494 dnsmasq: information leak in the DHCPv6 relay code\n1495415 - CVE-2017-14495 dnsmasq: memory exhaustion vulnerability in the EDNS0 code\n1495416 - CVE-2017-14496 dnsmasq: integer underflow leading to buffer over-read in the EDNS0 code\n\n6. Package List:\n\nRed Hat Enterprise Linux Client (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Client Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Server (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\naarch64:\ndnsmasq-2.76-2.el7_4.2.aarch64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm\n\nppc64:\ndnsmasq-2.76-2.el7_4.2.ppc64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm\n\nppc64le:\ndnsmasq-2.76-2.el7_4.2.ppc64le.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm\n\ns390x:\ndnsmasq-2.76-2.el7_4.2.s390x.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional (v. 7):\n\naarch64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.aarch64.rpm\n\nppc64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.ppc64.rpm\n\nppc64le:\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm\ndnsmasq-utils-2.76-2.el7_4.2.ppc64le.rpm\n\ns390x:\ndnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm\ndnsmasq-utils-2.76-2.el7_4.2.s390x.rpm\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security. Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2017-14491\nhttps://access.redhat.com/security/cve/CVE-2017-14492\nhttps://access.redhat.com/security/cve/CVE-2017-14493\nhttps://access.redhat.com/security/cve/CVE-2017-14494\nhttps://access.redhat.com/security/cve/CVE-2017-14495\nhttps://access.redhat.com/security/cve/CVE-2017-14496\nhttps://access.redhat.com/security/updates/classification/#critical\nhttps://access.redhat.com/security/vulnerabilities/3199382\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2017 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n\niD8DBQFZ0opYXlSAg2UNWIIRAr0dAJ9rIL1FgNTJUf2I9jjKFFlfkCd/kwCfV+bX\nSfoCV7+qG2nwqlHKLZOlhIU=\n=iWfU\n-----END PGP SIGNATURE-----\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://www.redhat.com/mailman/listinfo/rhsa-announce\n. \n===========================================================================\nUbuntu Security Notice USN-3430-3\nJanuary 04, 2018\n\ndnsmasq regression\n===========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 12.04 ESM\n\nSummary:\n\nUSN-3430-2 introduced regression in Dnsmasq. \n\nSoftware Description:\n- dnsmasq: Small caching DNS proxy and DHCP/TFTP server\n\nDetails:\n\nUSN-3430-2 fixed several vulnerabilities. The update introduced a new\nregression that breaks DNS resolution. This update addresses the\nproblem. \n\nWe apologize for the inconvenience. \n\nOriginal advisory details:\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. \n(CVE-2017-14491)\n\nFelix Wilhelm, Fermin J. (CVE-2017-14492)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 requests. \n(CVE-2017-14493)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 packets. (CVE-2017-14494)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14495)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. A remote\nattacker could use this issue to cause Dnsmasq to crash, resulting in\na denial of service. (CVE-2017-14496)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 12.04 ESM:\n dnsmasq=C2=A02.59-4ubuntu0.4\n dnsmasq-base2.59-4ubuntu0.4\n dnsmasq-utils2.59-4ubuntu0.4\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. \n\nAffected packages\n=================\n\n -------------------------------------------------------------------\n Package / Vulnerable / Unaffected\n -------------------------------------------------------------------\n 1 net-dns/dnsmasq \u003c 2.78 \u003e= 2.78 \n\nDescription\n===========\n\nMultiple vulnerabilities have been discovered in Dnsmasq. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll Dnsmasq users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot --verbose \"\u003e=net-dns/dnsmasq-2.78\"\n\nReferences\n==========\n\n[ 1 ] CVE-2017-14491\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14491\n[ 2 ] CVE-2017-14492\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14492\n[ 3 ] CVE-2017-14493\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14493\n[ 4 ] CVE-2017-14494\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14494\n[ 5 ] CVE-2017-14495\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14495\n[ 6 ] CVE-2017-14496\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14496\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n https://security.gentoo.org/glsa/201710-27\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2017 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttp://creativecommons.org/licenses/by-sa/2.5\n",
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VAR-201710-0449
Vulnerability from variot - Updated: 2023-12-26 00:11Stack-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DHCPv6 request. Dnsmasq versions 2.77 and earlier contains multiple vulnerabilities. dnsmasq Contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Critical: dnsmasq security update Advisory ID: RHSA-2017:2836-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:2836 Issue date: 2017-10-02 CVE Names: CVE-2017-14491 CVE-2017-14492 CVE-2017-14493 CVE-2017-14494 CVE-2017-14495 CVE-2017-14496 =====================================================================
- Summary:
An update for dnsmasq is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
- Description:
The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.
Security Fix(es):
-
A heap buffer overflow was found in dnsmasq in the code responsible for building DNS replies. (CVE-2017-14491)
-
A heap buffer overflow was discovered in dnsmasq in the IPv6 router advertisement (RA) handling code. This issue only affected configurations using one of these options: enable-ra, ra-only, slaac, ra-names, ra-advrouter, or ra-stateless. (CVE-2017-14492)
-
A stack buffer overflow was found in dnsmasq in the DHCPv6 code. (CVE-2017-14493)
-
An information leak was found in dnsmasq in the DHCPv6 relay code. An attacker on the local network could send crafted DHCPv6 packets to dnsmasq causing it to forward the contents of process memory, potentially leaking sensitive data. (CVE-2017-14494)
-
A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets which would trigger memory allocations which would never be freed, leading to unbounded memory consumption and eventually a crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet. (CVE-2017-14495)
-
An integer underflow flaw leading to a buffer over-read was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet. (CVE-2017-14496)
Red Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J. Serna (Google Security Team), Gabriel Campana (Google Security Team), Kevin Hamacher (Google Security Team), and Ron Bowes (Google Security Team) for reporting these issues.
- Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
- Bugs fixed (https://bugzilla.redhat.com/):
1495409 - CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies 1495410 - CVE-2017-14492 dnsmasq: heap overflow in the IPv6 router advertisement code 1495411 - CVE-2017-14493 dnsmasq: stack buffer overflow in the DHCPv6 code 1495412 - CVE-2017-14494 dnsmasq: information leak in the DHCPv6 relay code 1495415 - CVE-2017-14495 dnsmasq: memory exhaustion vulnerability in the EDNS0 code 1495416 - CVE-2017-14496 dnsmasq: integer underflow leading to buffer over-read in the EDNS0 code
- Package List:
Red Hat Enterprise Linux Client (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
aarch64: dnsmasq-2.76-2.el7_4.2.aarch64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm
ppc64: dnsmasq-2.76-2.el7_4.2.ppc64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm
ppc64le: dnsmasq-2.76-2.el7_4.2.ppc64le.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm
s390x: dnsmasq-2.76-2.el7_4.2.s390x.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
aarch64: dnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm dnsmasq-utils-2.76-2.el7_4.2.aarch64.rpm
ppc64: dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm dnsmasq-utils-2.76-2.el7_4.2.ppc64.rpm
ppc64le: dnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm dnsmasq-utils-2.76-2.el7_4.2.ppc64le.rpm
s390x: dnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm dnsmasq-utils-2.76-2.el7_4.2.s390x.rpm
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: dnsmasq-2.76-2.el7_4.2.src.rpm
x86_64: dnsmasq-2.76-2.el7_4.2.x86_64.rpm dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: dnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm dnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
- References:
https://access.redhat.com/security/cve/CVE-2017-14491 https://access.redhat.com/security/cve/CVE-2017-14492 https://access.redhat.com/security/cve/CVE-2017-14493 https://access.redhat.com/security/cve/CVE-2017-14494 https://access.redhat.com/security/cve/CVE-2017-14495 https://access.redhat.com/security/cve/CVE-2017-14496 https://access.redhat.com/security/updates/classification/#critical https://access.redhat.com/security/vulnerabilities/3199382
- Contact:
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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-- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . =========================================================================== Ubuntu Security Notice USN-3430-3 January 04, 2018
dnsmasq regression
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Summary:
USN-3430-2 introduced regression in Dnsmasq.
Software Description: - dnsmasq: Small caching DNS proxy and DHCP/TFTP server
Details:
USN-3430-2 fixed several vulnerabilities. The update introduced a new regression that breaks DNS resolution. This update addresses the problem.
We apologize for the inconvenience.
Original advisory details:
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14491)
Felix Wilhelm, Fermin J. (CVE-2017-14492)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DHCPv6 requests. (CVE-2017-14493)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DHCPv6 packets. (CVE-2017-14494)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14495)
Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14496)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 12.04 ESM: dnsmasq=C2=A02.59-4ubuntu0.4 dnsmasq-base2.59-4ubuntu0.4 dnsmasq-utils2.59-4ubuntu0.4
After a standard system update you need to reboot your computer to make all the necessary changes. 7.3) - ppc64, ppc64le, s390x, x86_64
-
Gentoo Linux Security Advisory GLSA 201710-27
https://security.gentoo.org/
Severity: Normal Title: Dnsmasq: Multiple vulnerabilities Date: October 23, 2017 Bugs: #632692 ID: 201710-27
Synopsis
Multiple vulnerabilities have been found in Dnsmasq, the worst of which may allow remote attackers to execute arbitrary code.
Affected packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-dns/dnsmasq < 2.78 >= 2.78
Description
Multiple vulnerabilities have been discovered in Dnsmasq.
Workaround
There is no known workaround at this time.
Resolution
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.78"
References
[ 1 ] CVE-2017-14491 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14491 [ 2 ] CVE-2017-14492 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14492 [ 3 ] CVE-2017-14493 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14493 [ 4 ] CVE-2017-14494 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14494 [ 5 ] CVE-2017-14495 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14495 [ 6 ] CVE-2017-14496 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14496
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/201710-27
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2017 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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"data": "Stack-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DHCPv6 request. Dnsmasq versions 2.77 and earlier contains multiple vulnerabilities. dnsmasq Contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1\n\n=====================================================================\n Red Hat Security Advisory\n\nSynopsis: Critical: dnsmasq security update\nAdvisory ID: RHSA-2017:2836-01\nProduct: Red Hat Enterprise Linux\nAdvisory URL: https://access.redhat.com/errata/RHSA-2017:2836\nIssue date: 2017-10-02\nCVE Names: CVE-2017-14491 CVE-2017-14492 CVE-2017-14493 \n CVE-2017-14494 CVE-2017-14495 CVE-2017-14496 \n=====================================================================\n\n1. Summary:\n\nAn update for dnsmasq is now available for Red Hat Enterprise Linux 7. \n\nRed Hat Product Security has rated this update as having a security impact\nof Critical. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Enterprise Linux Client (v. 7) - x86_64\nRed Hat Enterprise Linux Client Optional (v. 7) - x86_64\nRed Hat Enterprise Linux ComputeNode (v. 7) - x86_64\nRed Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64\nRed Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64\nRed Hat Enterprise Linux Workstation (v. 7) - x86_64\nRed Hat Enterprise Linux Workstation Optional (v. 7) - x86_64\n\n3. Description:\n\nThe dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name\nServer) forwarder and DHCP (Dynamic Host Configuration Protocol) server. \n\nSecurity Fix(es):\n\n* A heap buffer overflow was found in dnsmasq in the code responsible for\nbuilding DNS replies. \n(CVE-2017-14491)\n\n* A heap buffer overflow was discovered in dnsmasq in the IPv6 router\nadvertisement (RA) handling code. This issue only affected\nconfigurations using one of these options: enable-ra, ra-only, slaac,\nra-names, ra-advrouter, or ra-stateless. (CVE-2017-14492)\n\n* A stack buffer overflow was found in dnsmasq in the DHCPv6 code. (CVE-2017-14493)\n\n* An information leak was found in dnsmasq in the DHCPv6 relay code. An\nattacker on the local network could send crafted DHCPv6 packets to dnsmasq\ncausing it to forward the contents of process memory, potentially leaking\nsensitive data. (CVE-2017-14494)\n\n* A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An\nattacker could send crafted DNS packets which would trigger memory\nallocations which would never be freed, leading to unbounded memory\nconsumption and eventually a crash. This issue only affected configurations\nusing one of the options: add-mac, add-cpe-id, or add-subnet. \n(CVE-2017-14495)\n\n* An integer underflow flaw leading to a buffer over-read was found in\ndnsmasq in the EDNS0 code. An attacker could send crafted DNS packets to\ndnsmasq which would cause it to crash. This issue only affected\nconfigurations using one of the options: add-mac, add-cpe-id, or\nadd-subnet. (CVE-2017-14496)\n\nRed Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J. \nSerna (Google Security Team), Gabriel Campana (Google Security Team), Kevin\nHamacher (Google Security Team), and Ron Bowes (Google Security Team) for\nreporting these issues. \n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1495409 - CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies\n1495410 - CVE-2017-14492 dnsmasq: heap overflow in the IPv6 router advertisement code\n1495411 - CVE-2017-14493 dnsmasq: stack buffer overflow in the DHCPv6 code\n1495412 - CVE-2017-14494 dnsmasq: information leak in the DHCPv6 relay code\n1495415 - CVE-2017-14495 dnsmasq: memory exhaustion vulnerability in the EDNS0 code\n1495416 - CVE-2017-14496 dnsmasq: integer underflow leading to buffer over-read in the EDNS0 code\n\n6. Package List:\n\nRed Hat Enterprise Linux Client (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Client Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux ComputeNode Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Server (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\naarch64:\ndnsmasq-2.76-2.el7_4.2.aarch64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm\n\nppc64:\ndnsmasq-2.76-2.el7_4.2.ppc64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm\n\nppc64le:\ndnsmasq-2.76-2.el7_4.2.ppc64le.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm\n\ns390x:\ndnsmasq-2.76-2.el7_4.2.s390x.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional (v. 7):\n\naarch64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.aarch64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.aarch64.rpm\n\nppc64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.ppc64.rpm\n\nppc64le:\ndnsmasq-debuginfo-2.76-2.el7_4.2.ppc64le.rpm\ndnsmasq-utils-2.76-2.el7_4.2.ppc64le.rpm\n\ns390x:\ndnsmasq-debuginfo-2.76-2.el7_4.2.s390x.rpm\ndnsmasq-utils-2.76-2.el7_4.2.s390x.rpm\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation (v. 7):\n\nSource:\ndnsmasq-2.76-2.el7_4.2.src.rpm\n\nx86_64:\ndnsmasq-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation Optional (v. 7):\n\nx86_64:\ndnsmasq-debuginfo-2.76-2.el7_4.2.x86_64.rpm\ndnsmasq-utils-2.76-2.el7_4.2.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security. Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2017-14491\nhttps://access.redhat.com/security/cve/CVE-2017-14492\nhttps://access.redhat.com/security/cve/CVE-2017-14493\nhttps://access.redhat.com/security/cve/CVE-2017-14494\nhttps://access.redhat.com/security/cve/CVE-2017-14495\nhttps://access.redhat.com/security/cve/CVE-2017-14496\nhttps://access.redhat.com/security/updates/classification/#critical\nhttps://access.redhat.com/security/vulnerabilities/3199382\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2017 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n\niD8DBQFZ0opYXlSAg2UNWIIRAr0dAJ9rIL1FgNTJUf2I9jjKFFlfkCd/kwCfV+bX\nSfoCV7+qG2nwqlHKLZOlhIU=\n=iWfU\n-----END PGP SIGNATURE-----\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://www.redhat.com/mailman/listinfo/rhsa-announce\n. \n===========================================================================\nUbuntu Security Notice USN-3430-3\nJanuary 04, 2018\n\ndnsmasq regression\n===========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 12.04 ESM\n\nSummary:\n\nUSN-3430-2 introduced regression in Dnsmasq. \n\nSoftware Description:\n- dnsmasq: Small caching DNS proxy and DHCP/TFTP server\n\nDetails:\n\nUSN-3430-2 fixed several vulnerabilities. The update introduced a new\nregression that breaks DNS resolution. This update addresses the\nproblem. \n\nWe apologize for the inconvenience. \n\nOriginal advisory details:\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. \n(CVE-2017-14491)\n\nFelix Wilhelm, Fermin J. (CVE-2017-14492)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 requests. \n(CVE-2017-14493)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 packets. (CVE-2017-14494)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14495)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. (CVE-2017-14496)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 12.04 ESM:\n dnsmasq=C2=A02.59-4ubuntu0.4\n dnsmasq-base2.59-4ubuntu0.4\n dnsmasq-utils2.59-4ubuntu0.4\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. 7.3) - ppc64, ppc64le, s390x, x86_64\n\n3. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nGentoo Linux Security Advisory GLSA 201710-27\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n https://security.gentoo.org/\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\n Severity: Normal\n Title: Dnsmasq: Multiple vulnerabilities\n Date: October 23, 2017\n Bugs: #632692\n ID: 201710-27\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\nSynopsis\n========\n\nMultiple vulnerabilities have been found in Dnsmasq, the worst of which\nmay allow remote attackers to execute arbitrary code. \n\nAffected packages\n=================\n\n -------------------------------------------------------------------\n Package / Vulnerable / Unaffected\n -------------------------------------------------------------------\n 1 net-dns/dnsmasq \u003c 2.78 \u003e= 2.78 \n\nDescription\n===========\n\nMultiple vulnerabilities have been discovered in Dnsmasq. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll Dnsmasq users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot --verbose \"\u003e=net-dns/dnsmasq-2.78\"\n\nReferences\n==========\n\n[ 1 ] CVE-2017-14491\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14491\n[ 2 ] CVE-2017-14492\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14492\n[ 3 ] CVE-2017-14493\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14493\n[ 4 ] CVE-2017-14494\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14494\n[ 5 ] CVE-2017-14495\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14495\n[ 6 ] CVE-2017-14496\n https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-14496\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n https://security.gentoo.org/glsa/201710-27\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2017 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttp://creativecommons.org/licenses/by-sa/2.5\n",
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VAR-201710-1267
Vulnerability from variot - Updated: 2023-12-18 12:03In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero's (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash. Dnsmasq versions 2.77 and earlier contains multiple vulnerabilities. dnsmasq Contains an input validation vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. Multiple Siemens SCALANCE Products are prone to the following security vulnerabilities: 1. A buffer-overflow vulnerability 2. Multiple denial-of-service vulnerabilities Attackers can exploit these issues to execute arbitrary code within the context of affected device or cause a denial-of-service condition. This BID is being retired as a duplicate of BID 101085 Dnsmasq VU#973527 Multiple Security Vulnerabilities
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"sources": {
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"@context": {
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},
"data": "network",
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{
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{
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"title": {
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FKIE_CVE-2023-5528
Vulnerability from fkie_nvd - Published: 2023-11-14 21:15 - Updated: 2025-01-03 19:42
Severity ?
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| microsoft | windows | - | |
| fedoraproject | fedora | 37 | |
| fedoraproject | fedora | 38 | |
| fedoraproject | fedora | 39 |
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FKIE_CVE-2023-3955
Vulnerability from fkie_nvd - Published: 2023-10-31 21:15 - Updated: 2025-02-13 17:17
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A security issue was discovered in Kubernetes where a user
that can create pods on Windows nodes may be able to escalate to admin
privileges on those nodes. Kubernetes clusters are only affected if they
include Windows nodes.
References
| URL | Tags | ||
|---|---|---|---|
| jordan@liggitt.net | https://github.com/kubernetes/kubernetes/issues/119595 | Exploit, Mitigation, Patch, Third Party Advisory | |
| jordan@liggitt.net | https://groups.google.com/g/kubernetes-security-announce/c/JrX4bb7d83E | Technical Description | |
| jordan@liggitt.net | https://security.netapp.com/advisory/ntap-20231221-0002/ | ||
| af854a3a-2127-422b-91ae-364da2661108 | https://github.com/kubernetes/kubernetes/issues/119595 | Exploit, Mitigation, Patch, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://groups.google.com/g/kubernetes-security-announce/c/JrX4bb7d83E | Technical Description | |
| af854a3a-2127-422b-91ae-364da2661108 | https://security.netapp.com/advisory/ntap-20231221-0002/ |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| microsoft | windows | - |
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FKIE_CVE-2023-3676
Vulnerability from fkie_nvd - Published: 2023-10-31 21:15 - Updated: 2025-02-13 17:16
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A security issue was discovered in Kubernetes where a user
that can create pods on Windows nodes may be able to escalate to admin
privileges on those nodes. Kubernetes clusters are only affected if they
include Windows nodes.
References
| URL | Tags | ||
|---|---|---|---|
| jordan@liggitt.net | https://github.com/kubernetes/kubernetes/issues/119339 | Exploit, Mitigation, Patch, Third Party Advisory | |
| jordan@liggitt.net | https://groups.google.com/g/kubernetes-security-announce/c/d_fvHZ9a5zc | Third Party Advisory | |
| jordan@liggitt.net | https://security.netapp.com/advisory/ntap-20231130-0007/ | ||
| af854a3a-2127-422b-91ae-364da2661108 | https://github.com/kubernetes/kubernetes/issues/119339 | Exploit, Mitigation, Patch, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://groups.google.com/g/kubernetes-security-announce/c/d_fvHZ9a5zc | Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://security.netapp.com/advisory/ntap-20231130-0007/ |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| microsoft | windows | - |
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"references": [
{
"source": "jordan@liggitt.net",
"tags": [
"Exploit",
"Mitigation",
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/kubernetes/kubernetes/issues/119339"
},
{
"source": "jordan@liggitt.net",
"tags": [
"Third Party Advisory"
],
"url": "https://groups.google.com/g/kubernetes-security-announce/c/d_fvHZ9a5zc"
},
{
"source": "jordan@liggitt.net",
"url": "https://security.netapp.com/advisory/ntap-20231130-0007/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Mitigation",
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/kubernetes/kubernetes/issues/119339"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://groups.google.com/g/kubernetes-security-announce/c/d_fvHZ9a5zc"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.netapp.com/advisory/ntap-20231130-0007/"
}
],
"sourceIdentifier": "jordan@liggitt.net",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "jordan@liggitt.net",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
FKIE_CVE-2021-25736
Vulnerability from fkie_nvd - Published: 2023-10-30 03:15 - Updated: 2025-06-12 15:15
Severity ?
5.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
6.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
6.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Summary
Kube-proxy
on Windows can unintentionally forward traffic to local processes
listening on the same port (“spec.ports[*].port”) as a LoadBalancer
Service when the LoadBalancer controller
does not set the “status.loadBalancer.ingress[].ip” field. Clusters
where the LoadBalancer controller sets the
“status.loadBalancer.ingress[].ip” field are unaffected.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| microsoft | windows | - |
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"versionEndExcluding": "1.18.18",
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}
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}
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"lang": "en",
"value": "Kube-proxy\n on Windows can unintentionally forward traffic to local processes \nlistening on the same port (\u201cspec.ports[*].port\u201d) as a LoadBalancer \nService when the LoadBalancer controller\n does not set the \u201cstatus.loadBalancer.ingress[].ip\u201d field. Clusters \nwhere the LoadBalancer controller sets the \n\u201cstatus.loadBalancer.ingress[].ip\u201d field are unaffected."
},
{
"lang": "es",
"value": "Kube-proxy en Windows puede reenviar tr\u00e1fico involuntariamente a procesos locales que escuchan en el mismo puerto (\u201cspec.ports[*].port\u201d) que LoadBalancer Service cuando el controlador LoadBalancer no configura \u201cstatus.loadBalancer.ingress[].ip\u201d. Los cl\u00fasteres donde el controlador LoadBalancer establece el campo \"status.loadBalancer.ingress[].ip\" no se ven afectados."
}
],
"id": "CVE-2021-25736",
"lastModified": "2025-06-12T15:15:27.407",
"metrics": {
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"published": "2023-10-30T03:15:07.653",
"references": [
{
"source": "jordan@liggitt.net",
"tags": [
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"url": "https://github.com/kubernetes/kubernetes/pull/99958"
},
{
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},
{
"source": "jordan@liggitt.net",
"url": "https://security.netapp.com/advisory/ntap-20231221-0003/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/kubernetes/kubernetes/pull/99958"
},
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"tags": [
"Mailing List",
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"url": "https://groups.google.com/g/kubernetes-security-announce/c/lIoOPObO51Q/m/O15LOazPAgAJ"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.netapp.com/advisory/ntap-20231221-0003/"
}
],
"sourceIdentifier": "jordan@liggitt.net",
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"weaknesses": [
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"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-114"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
FKIE_CVE-2023-2727
Vulnerability from fkie_nvd - Published: 2023-07-03 21:15 - Updated: 2025-02-13 17:16
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Summary
Users may be able to launch containers using images that are restricted by ImagePolicyWebhook when using ephemeral containers. Kubernetes clusters are only affected if the ImagePolicyWebhook admission plugin is used together with ephemeral containers.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * |
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"matchCriteriaId": "44D47082-4E70-4CBE-B52B-B2A83903F17B",
"versionEndIncluding": "1.24.14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
"matchCriteriaId": "9CB1E96C-4CC8-4BE3-9BC6-2AE760B8AD3F",
"versionEndIncluding": "1.25.10",
"versionStartIncluding": "1.25.0",
"vulnerable": true
},
{
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"matchCriteriaId": "2EFB3393-262F-4179-B397-A08519AD6BE3",
"versionEndIncluding": "1.26.5",
"versionStartIncluding": "1.26.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0B26D20B-7A52-4957-8D0A-9D65572B764C",
"versionEndIncluding": "1.27.2",
"versionStartIncluding": "1.27.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Users may be able to launch containers using images that are restricted by ImagePolicyWebhook when using ephemeral containers. Kubernetes clusters are only affected if the ImagePolicyWebhook admission plugin is used together with ephemeral containers."
}
],
"id": "CVE-2023-2727",
"lastModified": "2025-02-13T17:16:22.307",
"metrics": {
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},
"exploitabilityScore": 1.2,
"impactScore": 5.2,
"source": "jordan@liggitt.net",
"type": "Secondary"
},
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"version": "3.1"
},
"exploitabilityScore": 1.2,
"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-07-03T21:15:09.480",
"references": [
{
"source": "jordan@liggitt.net",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2023/07/06/2"
},
{
"source": "jordan@liggitt.net",
"tags": [
"Issue Tracking"
],
"url": "https://github.com/kubernetes/kubernetes/issues/118640"
},
{
"source": "jordan@liggitt.net",
"tags": [
"Mailing List"
],
"url": "https://groups.google.com/g/kubernetes-security-announce/c/vPWYJ_L84m8"
},
{
"source": "jordan@liggitt.net",
"url": "https://security.netapp.com/advisory/ntap-20230803-0004/"
},
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"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
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},
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"tags": [
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],
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.netapp.com/advisory/ntap-20230803-0004/"
}
],
"sourceIdentifier": "jordan@liggitt.net",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "jordan@liggitt.net",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
FKIE_CVE-2023-2728
Vulnerability from fkie_nvd - Published: 2023-07-03 21:15 - Updated: 2025-02-13 17:16
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Summary
Users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the `kubernetes.io/enforce-mountable-secrets` annotation are used together with ephemeral containers.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * | |
| kubernetes | kubernetes | * |
{
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"versionEndIncluding": "1.24.14",
"vulnerable": true
},
{
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"matchCriteriaId": "9CB1E96C-4CC8-4BE3-9BC6-2AE760B8AD3F",
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},
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"versionEndIncluding": "1.27.2",
"versionStartIncluding": "1.27.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
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"lang": "en",
"value": "Users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers. The policy ensures pods running with a service account may only reference secrets specified in the service account\u2019s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the `kubernetes.io/enforce-mountable-secrets` annotation are used together with ephemeral containers."
}
],
"id": "CVE-2023-2728",
"lastModified": "2025-02-13T17:16:22.447",
"metrics": {
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},
"exploitabilityScore": 1.2,
"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-07-03T21:15:09.557",
"references": [
{
"source": "jordan@liggitt.net",
"tags": [
"Mailing List"
],
"url": "http://www.openwall.com/lists/oss-security/2023/07/06/3"
},
{
"source": "jordan@liggitt.net",
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"url": "https://groups.google.com/g/kubernetes-security-announce/c/vPWYJ_L84m8"
},
{
"source": "jordan@liggitt.net",
"url": "https://security.netapp.com/advisory/ntap-20230803-0004/"
},
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.netapp.com/advisory/ntap-20230803-0004/"
}
],
"sourceIdentifier": "jordan@liggitt.net",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "jordan@liggitt.net",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}