CVE-2021-4154

State
Published
Severity
Not scored
Published
Feb 4, 2022
Updated
Aug 3, 2024
Reserved
Dec 22, 2021

Read the record on cve.org

Description

A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.

Scores

The record has no CVSS score.

Weaknesses

Affected Products

ProductVersions
kerneln/a
  • Fixed in kernel 5.14 rc2Affected

References

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