HIGH 8.8 Microsoft
CVE-2021-4154
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.
Microsoft Security Update 2022-Feb: 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
- cm1 kernel 5.10.93.1-4 on CBL Mariner 1.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-4154
- https://nvd.nist.gov/vuln/detail/CVE-2021-4154
This high severity vulnerability with a CVSS score of 8.8 was published on 2022-02-08 via Microsoft. Affected: cm1 kernel 5.10.93.1-4 on CBL Mariner 1.0.
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