Red Hat: CVE-2021-4154: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout (Multiple Advisories)
7
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
01/19/2022
01/21/2022
01/20/2022
03/13/2024
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.
Solution(s)
- redhat-upgrade-kernel
- redhat-upgrade-kernel-rt
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