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CVE-2021-31523

Date: April 21, 2021

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.

Severity Score

Related Resources (6)

https://nvd.nist.gov/vuln/detail/CVE-2021-31523
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-31523
http://www.openwall.com/lists/oss-security/2021/04/21/3
https://security-tracker.debian.org/tracker/CVE-2021-31523
https://www.openwall.com/lists/oss-security/2021/04/17/1
https://www.mend.io/vulnerability-database/CVE-2021-31523

Severity Score

Weakness Type (CWE)

Improper Privilege Management

CWE-269

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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