CVE-2021-31523 json
The Debian xscreensaver 5.42+dfsg1-1 package for XScreenSaver has cap_net_raw enabled for the /usr/libexec/xscreensaver/sonar file, which a…
published 5y ago modified 4mo ago also EUVD-2021-18422
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
The Debian xscreensaver 5.42+dfsg1-1 package for XScreenSaver has cap_net_raw enabled for the /usr/libexec/xscreensaver/sonar file, which allows local users to gain privileges because this is arguably incompatible with the design of the Mesa 3D Graphics library dependency.
Patch / fix
- xscreensaver Debian 14, Debian 13, Debian 12 5.45+dfsg1-2
debian advisories DEBIAN-CVE-2021-31523
Is CVE-2021-31523 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
References
-
openwall.com
/lists/oss-security/2021/04/17/1
mailing-list, patch, third-party-advisory
-
openwall.com
/lists/oss-security/2021/04/21/3
mailing-list, patch, third-party-advisory
Sources
- CVE List CVE-2021-31523
- NVD CVE-2021-31523
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