CVE-2022-25327 - CVE House
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Status published Medium CVE-2022-25327

Local Denial of Service in fscrypt PAM module

Vulnerability Description

The PAM module for fscrypt doesn't adequately validate fscrypt metadata files, allowing users to create malicious metadata files that prevent other users from logging in. A local user can cause a denial of service by creating a fscrypt metadata file that prevents other users from logging into the system. We recommend upgrading to version 0.3.3 or above

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Matthias Gerstner of SUSE

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Affected Vendor

Affected Software

fscrypt
Vulnerable Versions:
unspecified

Timeline

Official Publish: February 25th, 2022
Last Modified: April 21st, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-255

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.