CVE-2021-31523 describes a local privilege escalation vulnerability in the Debian xscreensaver package (version 5.42+dfsg1-1). It arises from the /usr/libexec/xscreensaver/sonar file having cap_net_raw enabled, which, when combined with a Mesa 3D Graphics library dependency, allows local users to gain elevated privileges. Rated High with a CVSS score of 7.8, this vulnerability has a low attack complexity and requires local user access, but can lead to high impact on confidentiality, integrity, and availability. There is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.42\+dfsg1-1CPE matchmatch criteria | cpe:2.3:a:xscreensaver_project:xscreensaver:5.42\+dfsg1-1:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.