CVE-2011-4029

Severity: low (CVSS 1.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-07-03 · updated 2026-06-16
Weakness: CWE-362

Description

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

xorg-x11-server: through 1.11.1; 1.11.0

References

http://cgit.freedesktop.org/xorg/xserver/commit/?id=b67581cf825940fdf52bf2e0af4330e695d724a4
http://lists.freedesktop.org/archives/xorg/2011-October/053680.html
http://rhn.redhat.com/errata/RHSA-2012-0939.html
http://secunia.com/advisories/46460
http://secunia.com/advisories/49579
http://cgit.freedesktop.org/xorg/xserver/commit/?id=b67581cf825940fdf52bf2e0af4330e695d724a4
http://lists.freedesktop.org/archives/xorg/2011-October/053680.html
http://rhn.redhat.com/errata/RHSA-2012-0939.html
http://secunia.com/advisories/46460
http://secunia.com/advisories/49579

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