CVE-2022-0185
HIGH8.4⚠ KEVEPSS 1.8%Linux Kernel Heap-Based Buffer Overflow Vulnerability
Published: 2/11/2022Modified: 4/28/2026Added to CISA KEV: 8/21/2024
Description
A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.
Affected packages (1)
- Debian/linuxfrom 0, < 5.10.92-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |