csaf_redhat - rhsa-2022

rhsa-2022_4644

Vulnerability from csaf_redhat

Published

2022-05-18 16:28

Modified

2024-09-13 17:37

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 7. 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: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492) 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 to the latest RHEL7.9.z14 source tree (BZ#2071179)

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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          "organization": "Nebula Lab"
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          "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"
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          "text": "kernel: cgroups v1 release_agent feature may allow privilege escalation",
          "title": "Vulnerability summary"
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          "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 understand the severity of this vulnerability.",
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cve-2022-0492

Vulnerability from cvelistv5

Published

2022-03-03 00:00

Modified

2024-08-02 23:32

Severity

Summary

A vulnerability was found in the Linux kernel’s 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.

References

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2051505
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02af
https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html	mailing-list
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html	mailing-list
https://www.debian.org/security/2022/dsa-5095	vendor-advisory
https://www.debian.org/security/2022/dsa-5096	vendor-advisory
http://packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.html
https://security.netapp.com/advisory/ntap-20220419-0002/
http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html
http://packetstormsecurity.com/files/176099/Docker-cgroups-Container-Escape.html

Impacted products

Vendor	Product
n/a	kernel

Show details on NVD website