CVE-2022-0185

8.4 HIGH CISA KEV - Actively Exploited
Published: February 11, 2022 Modified: November 06, 2025
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2
Source: secalert@redhat.com
Mailing List Patch
https://github.com/Crusaders-of-Rust/CVE-2022-0185
Source: secalert@redhat.com
Exploit Third Party Advisory
https://security.netapp.com/advisory/ntap-20220225-0003/
Source: secalert@redhat.com
Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/01/18/7
Source: secalert@redhat.com
Mailing List Patch Third Party Advisory
https://www.willsroot.io/2022/01/cve-2022-0185.html
Source: secalert@redhat.com
Exploit Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch
https://github.com/Crusaders-of-Rust/CVE-2022-0185
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://security.netapp.com/advisory/ntap-20220225-0003/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/01/18/7
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Third Party Advisory
https://www.willsroot.io/2022/01/cve-2022-0185.html
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0185
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

11 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.4 / 10.0
EPSS (Exploit Probability)
0.8%
73th percentile
Exploitation Status
Actively Exploited
Remediation due: 2024-09-11

Weaknesses (CWE)

CWE-190 CWE-191

Affected Vendors

linux netapp

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