VULNERABILITY INTELLIGENCE

CVE-2022-0185

CVSS score8.4 HIGH

EPSS probability25.15%

CISA KEVKnown exploited vulnerability

Published2022-02-11

Last modified2026-06-17

Known Exploited Vulnerability

Linux Kernel Heap-Based Buffer Overflow Vulnerability

Vendor / product: Linux / Kernel

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.