Vulnerability identifier: #VU61245

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-0492

CWE-ID:

Exploitation vector: Local

Exploit availability:

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor:

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a logic error within the cgroup_release_agent_write() function in  kernel/cgroup/cgroup-v1.c. A local user can use the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02af
http://bugzilla.redhat.com/show_bug.cgi?id=2051505

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?