CVE-2022-0492

high-risk

Published 2022-03-03

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.

Do I need to act?

5.1% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.8/10 High

LOCAL / LOW complexity

Affected Products (20)

Linux Kernel

Debian Linux

Codeready Linux Builder

Codeready Linux Builder For Power Little Endian

Virtualization Host

Enterprise Linux

Enterprise Linux Eus

Enterprise Linux For Ibm Z Systems

Enterprise Linux For Ibm Z Systems Eus

Enterprise Linux For Power Little Endian

Enterprise Linux For Power Little Endian Eus

Enterprise Linux For Real Time For Nfv Tus

Enterprise Linux For Real Time Tus

Affected Vendors

Debian Redhat Linux Canonical Fedoraproject Netapp

References (20)

Third Party Advisory http://packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LS...

Third Party Advisory http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LS...

http://packetstormsecurity.com/files/176099/Docker-cgroups-Container-Escape.html

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2051505

Patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24...

Mailing List https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html

Mailing List https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html

Third Party Advisory https://security.netapp.com/advisory/ntap-20220419-0002/

Third Party Advisory https://www.debian.org/security/2022/dsa-5095

Third Party Advisory https://www.debian.org/security/2022/dsa-5096