CVE-2011-4029: X.org X Server

Low severity, CVSS 1.9. EPSS: 0.6% chance of exploitation in the next 30 days.

The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to change the permissions of arbitrary files to 444, read those files, and possibly cause a denial of service (removed execution permission) via a symlink attack on a temporary lock file.

Affected products

• X.org X Server: up to and including 1.11.1; version 1.11.0 only

Published 2012-07-03. Last modified 2026-06-16.