Resource exhaustion in Google Fscrypt

CVE-2022-25326

fscrypt through v0.3.2 creates a world-writable directory by default when setting up a filesystem, allowing unprivileged users to exhaust filesystem space. We recommend upgrading to fscrypt 0.3.3 or above and adjusting the permissions on existing fscrypt metadata directories where applicable.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.001 (3.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-25326?
CVE-2022-25326 is a medium-severity vulnerability in Google Fscrypt, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2022-02-25.
How severe is CVE-2022-25326?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2022-25326 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.