Local Denial of Service in fscrypt PAM module
CVE-2022-25327

5.5MEDIUM

Key Information:

Vendor
Google
Status
Fscrypt
Vendor
CVE Published:
25 February 2022

Summary

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

Affected Version(s)

fscrypt <= 0.3.2

References

https://github.com/google/fscrypt/pull/346
x_refsource_MISC

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database

Credit

Matthias Gerstner of SUSE
.