Home/CVE/The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to change the permissions of arb
CVE

CVE-2011-4029

The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to change the permissions of arb

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.

LOW · CVSS 1.9 EPSS 0.00866
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
▤

Affected Products & Versions

2
x.org x server<= 1.11.1
x.org x serverall versions
⚠

Public Exploits & PoCs

1
localX.Org xorg 1.4 < 1.11.2 - File Permission Change2011-10-28
▣

Scoring & Timeline

1.9
LOW · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:L/AC:M/Au:N/C:P/I:N/A:N
Published to NVD03 Jul 2012 · 07:55 PM
⚑

Vendor Advisories

2
usnUSN-1232-1
rhsaRHSA-2012:0939Low
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://cgit.freedesktop.org/xorg/xserver/commit/?id=b67581cf825940fdf52bf2e0af4330e695d724a4Patch
http://lists.freedesktop.org/archives/xorg/2011-October/053680.html
http://rhn.redhat.com/errata/RHSA-2012-0939.html
http://secunia.com/advisories/46460Vendor Advisory
http://secunia.com/advisories/49579Vendor Advisory
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