CVE-2022-0492

Description

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.

Categories

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 7.72% Top 10%
Vendor Advisory debian.org Vendor Advisory debian.org Vendor Advisory kernel.org
Affected: n/a kernel
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2022-0492?
CVE-2022-0492 has been scored as a high severity vulnerability.
How to fix CVE-2022-0492?
To fix CVE-2022-0492, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-0492 being actively exploited in the wild?
It is possible that CVE-2022-0492 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~8% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-0492?
CVE-2022-0492 affects n/a kernel.
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