CVE-2021-4154
CVE-2021-4154
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 1.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
04 Feb 2022Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
Affected products
n/a · kernelWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
https://bugzilla.redhat.com/show_bug.cgi?id=2034514https://cloud.google.com/anthos/clusters/docs/security-bulletins#gcp-2022-002https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b0462726e7ef281c35a7a4ae33e93ee2bc9975bhttps://security.netapp.com/advisory/ntap-20220225-0004/