rhsa-2024_2671
Vulnerability from csaf_redhat
Published
2024-05-09 17:32
Modified
2024-11-07 07:58
Summary
Red Hat Security Advisory: Red Hat build of MicroShift 4.14.24 security update
Notes
Topic
Red Hat build of MicroShift release 4.14.24 is now available with updates
to packages and images that fix several bugs.
This release includes a security update for Red Hat build of MicroShift 4.14.24.
Red Hat Product Security has rated this update as having a security impact
of Important. 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.
Details
Red Hat build of MicroShift is Red Hat's light-weight Kubernetes
orchestration solution designed for edge device deployments and is built
from the edge capabilities of Red Hat OpenShift. MicroShift is an
application that is deployed on top of Red Hat Enterprise Linux devices at
the edge, providing an efficient way to operate single-node clusters in
these low-resource environments.
This advisory contains the RPM packages for Red Hat build of MicroShift
4.14.24. Read the following advisory for the container images for this
release:
https://access.redhat.com/errata/RHSA-2024:2668
Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or private
cloud deployments.
Security Fix(es):
* golang: net/http, x/net/http2: unlimited number of CONTINUATION frames
causes DoS (CVE-2023-45288)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
All of the bug fixes may not be documented in this advisory. Read the
following release notes documentation for details about these changes:
https://access.redhat.com/documentation/en-us/red_hat_build_of_microshift/4.14/html/release_notes/index
All Red Hat build of MicroShift 4.14 users are advised to use these updated
packages and images when they are available in the RPM repository.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"text": "Red Hat build of MicroShift release 4.14.24 is now available with updates\nto packages and images that fix several bugs.\n\nThis release includes a security update for Red Hat build of MicroShift 4.14.24.\n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section.",
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"text": "Red Hat build of MicroShift is Red Hat\u0027s light-weight Kubernetes\norchestration solution designed for edge device deployments and is built\nfrom the edge capabilities of Red Hat OpenShift. MicroShift is an\napplication that is deployed on top of Red Hat Enterprise Linux devices at\nthe edge, providing an efficient way to operate single-node clusters in\nthese low-resource environments.\n\nThis advisory contains the RPM packages for Red Hat build of MicroShift\n4.14.24. Read the following advisory for the container images for this\nrelease:\n\nhttps://access.redhat.com/errata/RHSA-2024:2668\n\nRed Hat OpenShift Container Platform is Red Hat\u0027s cloud computing\nKubernetes application platform solution designed for on-premise or private\ncloud deployments.\n\nSecurity Fix(es):\n\n* golang: net/http, x/net/http2: unlimited number of CONTINUATION frames\ncauses DoS (CVE-2023-45288)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section.\n\nAll of the bug fixes may not be documented in this advisory. Read the\nfollowing release notes documentation for details about these changes:\n\nhttps://access.redhat.com/documentation/en-us/red_hat_build_of_microshift/4.14/html/release_notes/index\n\nAll Red Hat build of MicroShift 4.14 users are advised to use these updated\npackages and images when they are available in the RPM repository.",
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{
"category": "description",
"text": "A vulnerability was discovered with the implementation of the HTTP/2 protocol in the Go programming language. There were insufficient limitations on the amount of CONTINUATION frames sent within a single stream. An attacker could potentially exploit this to cause a Denial of Service (DoS) attack.",
"title": "Vulnerability description"
},
{
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"text": "golang: net/http, x/net/http2: unlimited number of CONTINUATION frames causes DoS",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat rates the security impact of this vulnerability as Important due to the worst case scenario resulting in a denial of service. It is simple to exploit, could significantly impact availability, and there is not a suitable mitigation for all use cases. Once an attack has ended, the system should return to normal operations on its own.\n\nThis vulnerability only impacts servers which have HTTP/2 enabled. It stems from an imperfect definition of the protocol. As the Go programming language is widely utilized across nearly every major Red Hat offering, a full listing of impacted packages will not be provided. Therefore, the \u201cAffected Packages and Issued Red Hat Security Errata\u201d section contains a simplified list of what offerings need to remediate this vulnerability. Every impacted offering has at least one representative component listed, but potentially not all of them. Rest assured that Red Hat is committed to remediating this vulnerability across our entire portfolio.\n\nMany components are rated as Low impact due to configurations which reduce the attack surface or significantly increase the difficulty of exploitation. A summary of these scenarios are:\n* The container includes a package that provides a vulnerable webserver, but it is not used or running during operation\n* HTTP/2 is disabled by default and is not supported\n* Only a client implementation is provided, which is not vulnerable\n* A vulnerable module (either golang.org/net/http or golang.org/x/net/http2) is included, but disabled\n* Access to a vulnerable server is restricted within the container (loopback only connections)\n* Golang is available in the container but is not used\n\n\nWithin the Red Hat OpenShift Container Platform, the majority of vulnerable components are not externally accessible. This means an attacker must already have access to a container within your environment to exploit this vulnerability. However, the ose-hyperkube (openshift-enterprise-hyperkube) container is externally accessible, so there are less barriers to exploitation. Fixes for this specific container are already available.\n\nWithin Red Hat Ansible Automation Platform, the impacted component is Receptor. The impact has been reduced to Low as the vulnerable code is present, but not utilized. There are three potential exposures within this component:\n* Receptor utilizes QUIC a UDP based protocol which does not run over HTTP/2\n* Receptor utilizes the x/net/ipv4 and ipv6 packages, both of which are not affected",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2024-2687",
"url": "https://pkg.go.dev/vuln/GO-2024-2687"
},
{
"category": "external",
"summary": "https://www.kb.cert.org/vuls/id/421644",
"url": "https://www.kb.cert.org/vuls/id/421644"
}
],
"release_date": "2024-04-03T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-05-09T17:32:49+00:00",
"details": "For MicroShift 4.14, read the following documentation, which will be\nupdated shortly for this release, for important instructions on how to\ninstall the latest RPMs and fully apply this asynchronous errata update:\n\nhttps://access.redhat.com/documentation/en-us/red_hat_build_of_microshift/4.14/html/release_notes/index",
"product_ids": [
"9Base-RHOSE-4.14:microshift-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.aarch64",
"9Base-RHOSE-4.14:microshift-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.src",
"9Base-RHOSE-4.14:microshift-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.x86_64",
"9Base-RHOSE-4.14:microshift-greenboot-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.noarch",
"9Base-RHOSE-4.14:microshift-networking-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.aarch64",
"9Base-RHOSE-4.14:microshift-networking-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.x86_64",
"9Base-RHOSE-4.14:microshift-release-info-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.noarch",
"9Base-RHOSE-4.14:microshift-selinux-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.noarch"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2024:2671"
},
{
"category": "workaround",
"details": "In some environments where http/2 support is not required, it may be possible to disable this feature to reduce risk.",
"product_ids": [
"9Base-RHOSE-4.14:microshift-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.aarch64",
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"9Base-RHOSE-4.14:microshift-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.x86_64",
"9Base-RHOSE-4.14:microshift-greenboot-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.noarch",
"9Base-RHOSE-4.14:microshift-networking-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.aarch64",
"9Base-RHOSE-4.14:microshift-networking-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.x86_64",
"9Base-RHOSE-4.14:microshift-release-info-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.noarch",
"9Base-RHOSE-4.14:microshift-selinux-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.noarch"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"9Base-RHOSE-4.14:microshift-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.aarch64",
"9Base-RHOSE-4.14:microshift-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.src",
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"9Base-RHOSE-4.14:microshift-selinux-0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9.noarch"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "golang: net/http, x/net/http2: unlimited number of CONTINUATION frames causes DoS"
}
]
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.