Missing Authorization Affecting kernel-rt-kvm package, versions <0:4.18.0-348.20.1.rt7.150.el8_5
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTKVM-2395883
- published 8 Feb 2022
- disclosed 7 Feb 2022
Introduced: 7 Feb 2022
CVE-2022-0492 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-kvm to version 0:4.18.0-348.20.1.rt7.150.el8_5 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-kvm package and not the kernel-rt-kvm package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
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
- https://access.redhat.com/security/cve/CVE-2022-0492
- https://access.redhat.com/errata/RHSA-2022:0819
- http://packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.html
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html
- 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
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- https://security.netapp.com/advisory/ntap-20220419-0002/
- https://www.debian.org/security/2022/dsa-5095
- https://www.debian.org/security/2022/dsa-5096
- http://packetstormsecurity.com/files/176099/Docker-cgroups-Container-Escape.html