CVE-2013-4331: Robert Ancell Lightdm

Low severity, CVSS 2.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Light Display Manager (aka LightDM) 1.4.x before 1.4.3, 1.6.x before 1.6.2, and 1.7.x before 1.7.14 uses 0664 permissions for the temporary .Xauthority file, which allows local users to obtain sensitive information by reading the file.

Affected products

• Robert Ancell Lightdm: version 1.4.0 only; version 1.4.1 only; version 1.4.2 only; version 1.6.0 only; version 1.6.1 only; version 1.7.0 only; …

Published 2014-02-02. Last modified 2026-06-16.