CVE-2022-0185

HIGH8.4

CISA KEV

Published 2022-02-11 · Updated 2026-06-17 · Source secalert@redhat.com

Summary

CVE-2022-0185 is a high-severity (CVSS 8.4) vulnerability in Linux Kernel. CISA added it to the Known Exploited Vulnerabilities catalog on August 21, 2024, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by September 11, 2024. CISA does not currently list it as used in ransomware campaigns. Linux has 32 vulnerabilities in the KEV catalog, 2 of them linked to ransomware.

All 32 known-exploited Linux vulnerabilities →

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.

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-190CWE-191

CISA Known-Exploited Vulnerability

Product: Linux — Kernel

Name: Linux Kernel Heap-Based Buffer Overflow Vulnerability

Date added: 2024-08-21 · Due: 2024-09-11

Required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

References

View on NVD

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