Race Condition Affecting xorg-x11-server-common package, versions <0:1.10.6-1.el6


Severity

Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.61% (45th percentile)

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  • Snyk IDSNYK-RHEL6-XORGX11SERVERCOMMON-1442610
  • published26 Jul 2021
  • disclosed18 Oct 2011

Introduced: 18 Oct 2011

CVE-2011-4029  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade RHEL:6 xorg-x11-server-common to version 0:1.10.6-1.el6 or higher.
This issue was patched in RHSA-2012:0939.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-x11-server-common package and not the xorg-x11-server-common package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1