Vulnerability · Published Feb 25, 2022 · Assigned by Google

CVE-2022-25326Denial of Service in fscrypt

Medium 5.5

In plain English

A medium-severity uncontrolled resource consumption in fscrypt from Google LLC. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.1%top 97.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	fscrypt	0.3.3-1	DEBIAN-CVE-2022-25326
Debian:13	fscrypt	0.3.3-1	DEBIAN-CVE-2022-25326
Debian:14	fscrypt	0.3.3-1	DEBIAN-CVE-2022-25326
Go	github.com/google/fscrypt	0.3.3	GHSA-chxf-fjcf-7fwp
Go	github.com/google/fscrypt	0.3.3	GHSA-mpq4-rjj8-fjph
Go	github.com/google/fscrypt	0.3.3	GO-2022-0339

Affected products (as reported)

Vendor	Product	Versions
Google LLC	fscrypt	unspecified – through 0.3.2

Weakness: CWE-400 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

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