rhsa-2022_1413
Vulnerability from csaf_redhat
Published
2022-04-19 15:07
Modified
2024-11-15 14:46
Summary
Red Hat Security Advisory: kernel-rt security and bug fix update
Notes
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4 Extended Update Support.
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
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)
* kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)
* kernel: heap out of bounds write in nf_dup_netdev.c (CVE-2022-25636)
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.
Bug Fix(es):
* kernel-rt: update RT source tree to the RHEL-8.4.z8 source tree (BZ#2059334)
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.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4 Extended Update Support.\n\nRed 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.", "title": "Topic" }, { "category": "general", "text": "The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.\n\nSecurity Fix(es):\n\n* kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)\n\n* kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)\n\n* kernel: heap out of bounds write in nf_dup_netdev.c (CVE-2022-25636)\n\nFor 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.\n\nBug Fix(es):\n\n* kernel-rt: update RT source tree to the RHEL-8.4.z8 source tree (BZ#2059334)", "title": "Details" }, { "category": "legal_disclaimer", "text": "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.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2022:1413", "url": "https://access.redhat.com/errata/RHSA-2022:1413" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "2029923", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2029923" }, { "category": "external", "summary": "2051505", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2051505" }, { "category": "external", "summary": "2056830", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2056830" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_1413.json" } ], "title": "Red Hat Security Advisory: kernel-rt security and bug fix update", "tracking": { "current_release_date": "2024-11-15T14:46:54+00:00", "generator": { "date": "2024-11-15T14:46:54+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.1" } }, "id": "RHSA-2022:1413", "initial_release_date": "2022-04-19T15:07:33+00:00", "revision_history": [ { "date": "2022-04-19T15:07:33+00:00", "number": "1", "summary": "Initial version" }, { "date": "2022-04-19T15:07:33+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-15T14:46:54+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, 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This flaw allows a local user to crash the system or escalate their privileges on the system.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: fget: check that the fd still exists after getting a ref to it", "title": "Vulnerability summary" }, { "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" } ], "product_status": { "fixed": [ "NFV-8.4.0.Z.EUS:kernel-rt-0:4.18.0-305.45.1.rt7.117.el8_4.src", "NFV-8.4.0.Z.EUS:kernel-rt-0:4.18.0-305.45.1.rt7.117.el8_4.x86_64", "NFV-8.4.0.Z.EUS:kernel-rt-core-0:4.18.0-305.45.1.rt7.117.el8_4.x86_64", "NFV-8.4.0.Z.EUS:kernel-rt-debug-0:4.18.0-305.45.1.rt7.117.el8_4.x86_64", "NFV-8.4.0.Z.EUS:kernel-rt-debug-core-0:4.18.0-305.45.1.rt7.117.el8_4.x86_64", 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"organization": "Nebula Lab" }, { "names": [ "Kevin Wang" ], "organization": "Huawei" } ], "cve": "CVE-2022-0492", "cwe": { "id": "CWE-862", "name": "Missing Authorization" }, "discovery_date": "2022-02-07T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2051505" } ], "notes": [ { "category": "description", "text": "A vulnerability was found in the Linux kernel\u2019s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: cgroups v1 release_agent feature may allow privilege escalation", "title": "Vulnerability summary" }, { "category": "other", "text": "In the OpenShift Container Platform (OCP) the container escape and privilege escalation caused by the CVE-2022-0492 vulnerability are blocked by the SELinux policy enabled (by default) on the OCP cluster nodes.\n\nRed Hat Virtualization requires SELinux running in enforcing mode[1] on all hypervisors and managers, which blocks this vulnerability.\n\n1. https://access.redhat.com/solutions/499473", "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 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problem. This flaw allows a local attacker with a user account on the system to gain access to out-of-bounds memory, leading to a system crash or a privilege escalation threat.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: heap out of bounds write in nf_dup_netdev.c", "title": "Vulnerability summary" }, { "category": "other", "text": "This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 8.3 GA onwards. Previous Red Hat Enterprise Linux versions 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" } ], "product_status": { "fixed": [ "NFV-8.4.0.Z.EUS:kernel-rt-0:4.18.0-305.45.1.rt7.117.el8_4.src", "NFV-8.4.0.Z.EUS:kernel-rt-0:4.18.0-305.45.1.rt7.117.el8_4.x86_64", "NFV-8.4.0.Z.EUS:kernel-rt-core-0:4.18.0-305.45.1.rt7.117.el8_4.x86_64", "NFV-8.4.0.Z.EUS:kernel-rt-debug-0:4.18.0-305.45.1.rt7.117.el8_4.x86_64", "NFV-8.4.0.Z.EUS:kernel-rt-debug-core-0:4.18.0-305.45.1.rt7.117.el8_4.x86_64", "NFV-8.4.0.Z.EUS:kernel-rt-debug-debuginfo-0:4.18.0-305.45.1.rt7.117.el8_4.x86_64", "NFV-8.4.0.Z.EUS:kernel-rt-debug-devel-0:4.18.0-305.45.1.rt7.117.el8_4.x86_64", "NFV-8.4.0.Z.EUS:kernel-rt-debug-kvm-0:4.18.0-305.45.1.rt7.117.el8_4.x86_64", 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"https://access.redhat.com/security/cve/CVE-2022-25636" }, { "category": "external", "summary": "RHBZ#2056830", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2056830" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2022-25636", "url": "https://www.cve.org/CVERecord?id=CVE-2022-25636" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-25636", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-25636" }, { "category": "external", "summary": "https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git/commit/?id=b1a5983f56e371046dcf164f90bfaf704d2b89f6", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git/commit/?id=b1a5983f56e371046dcf164f90bfaf704d2b89f6" }, { "category": "external", "summary": "https://www.openwall.com/lists/oss-security/2022/02/21/2", "url": "https://www.openwall.com/lists/oss-security/2022/02/21/2" } ], "release_date": "2022-02-22T00:00:00+00:00", "remediations": [ { 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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- 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.