CVE-2022-25327 json
Local Denial of Service in fscrypt PAM module
published 2022-02-25 4 y ago modified 2026-06-17 4 mo ago also GHSA-8vwm-8vj8-rqjf , GHSA-p93v-m2r2-4387 , GO-2022-0340 , EUVD-2022-0926
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 1%
- public exploits
- 0
- none known
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
Patch / fix
- go github.com/google/fscrypt 0.3.3
- google fscrypt 0.3.3
- fscrypt Debian 14, Debian 13, Debian 12 0.3.3-1
debian advisories DEBIAN-CVE-2022-25327
- fscrypt openSUSE Tumbleweed 0.3.3-1.1
opensuse advisories openSUSE-SU-2024:11902-1
- github.com/google/fscrypt@91aa3eb commit
- github.com/google/fscrypt#346 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.11% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:N/I:N/A:P |
| GitHub | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/google/fscrypt | <0.3.3 |
0.3.3 |
Affected products
- Google LLC fscrypt
Classification
References
-
github.com
/google/fscrypt/pull/346
web, patch, third-party-advisory
-
github.com
/google/fscrypt/commit/91aa3ebf42032ca783c41f9ec25d885875f66ddb
web, patch
-
github.com
/google/fscrypt/security/advisories/GHSA-p93v-m2r2-4387
web
-
pkg.go.dev
/vuln/GO-2022-0340
web
-
nvd.nist.gov
/vuln/detail/CVE-2022-25327
advisory
-
github.com
/google/fscrypt
package
-
github.com
/advisories/GHSA-8vwm-8vj8-rqjf
advisory
Sources
- CVE List CVE-2022-25327
- GitHub Advisory GHSA-p93v-m2r2-4387
- GitHub Advisory GHSA-8vwm-8vj8-rqjf
- NVD CVE-2022-25327
- OSV GO-2022-0340
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.