High severity7.8NVD Advisory· Published Apr 21, 2021· Updated Jun 17, 2026
CVE-2021-31523
CVE-2021-31523
Description
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.
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Affected products
3- cpe:2.3:a:xscreensaver_project:xscreensaver:5.42\+dfsg1-1:*:*:*:*:*:*:*
- Debian/xscreensaverdescription
- Range: 5.42+dfsg1-1
Patches
Vulnerability mechanics
References
2- www.openwall.com/lists/oss-security/2021/04/21/3nvdMailing ListPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2021/04/17/1nvdMailing ListPatchThird Party Advisory
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