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.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2021-34022 | 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. |
References
History
Wed, 16 Jul 2025 13:45:00 +0000
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-03T17:16:04.485Z
Reserved: 2021-12-22T00:00:00.000Z
Link: CVE-2021-4154
No data.
Status : Modified
Published: 2022-02-04T23:15:12.307
Modified: 2024-11-21T06:37:00.750
Link: CVE-2021-4154
OpenCVE Enrichment
No data.
Weaknesses
EUVD