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CVE-2011-4029

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

1.9 LowPublic exploitFix available

CVE-2011-4029 is a low vulnerability (CVSS 1.9) in X.org X Server, published July 3, 2012. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 48th percentile. Fixed in xorg-server 2:1.11.1.901-2.

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.

Exploit likelihood

0.60%Down 1.0 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 1.9

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.

Record
CVE-2011-4029
CVSS 2.0
1.9 LowAV:L/AC:M/Au:N/C:P/I:N/A:N
Weakness
CWE-362
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2011-4029
Updated
2026-11-02
EUVDEUVD-2011-3982 No score

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.

Record
EUVD-2011-3982
Updated
2026-11-03
GitHub AdvisoriesGHSA-mq85-mwhp-wv55 No score

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

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.

Record
GHSA-mq85-mwhp-wv55
Weakness
CWE-362
Updated
2026-11-02
OSV No score

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.

Record
CVE-2011-4029
Updated
2026-11-02
OSVDEBIAN-CVE-2011-4029 No score

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.

Record
DEBIAN-CVE-2011-4029
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
xorg-server
Debian:12
 before 2:1.11.1.901-2
2:1.11.1.901-2
xorg-server
Debian:13
 before 2:1.11.1.901-2
2:1.11.1.901-2
xorg-server
Debian:14
 before 2:1.11.1.901-2
2:1.11.1.901-2
xorg-x11-server
Red Hat:enterprise_linux:6::client
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xdmx
Red Hat:enterprise_linux:6::client
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xnest
Red Hat:enterprise_linux:6::client
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xvfb
Red Hat:enterprise_linux:6::client
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-debuginfo
Red Hat:enterprise_linux:6::client
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-devel
Red Hat:enterprise_linux:6::client
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-source
Red Hat:enterprise_linux:6::client
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
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Affected packages
PackageAffectedFixed
xorg-x11-server-Xephyr
Red Hat:enterprise_linux:6::client
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xorg
Red Hat:enterprise_linux:6::client
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-common
Red Hat:enterprise_linux:6::client
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server
Red Hat:enterprise_linux:6::computenode
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xdmx
Red Hat:enterprise_linux:6::computenode
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xephyr
Red Hat:enterprise_linux:6::computenode
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xnest
Red Hat:enterprise_linux:6::computenode
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xorg
Red Hat:enterprise_linux:6::computenode
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xvfb
Red Hat:enterprise_linux:6::computenode
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-common
Red Hat:enterprise_linux:6::computenode
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-debuginfo
Red Hat:enterprise_linux:6::computenode
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-devel
Red Hat:enterprise_linux:6::computenode
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-source
Red Hat:enterprise_linux:6::computenode
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server
Red Hat:enterprise_linux:6::server
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xdmx
Red Hat:enterprise_linux:6::server
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xnest
Red Hat:enterprise_linux:6::server
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xvfb
Red Hat:enterprise_linux:6::server
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-devel
Red Hat:enterprise_linux:6::server
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-source
Red Hat:enterprise_linux:6::server
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xephyr
Red Hat:enterprise_linux:6::server
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xorg
Red Hat:enterprise_linux:6::server
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-common
Red Hat:enterprise_linux:6::server
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server
Red Hat:enterprise_linux:6::workstation
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xdmx
Red Hat:enterprise_linux:6::workstation
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xnest
Red Hat:enterprise_linux:6::workstation
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xvfb
Red Hat:enterprise_linux:6::workstation
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-debuginfo
Red Hat:enterprise_linux:6::workstation
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-devel
Red Hat:enterprise_linux:6::workstation
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-source
Red Hat:enterprise_linux:6::workstation
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xephyr
Red Hat:enterprise_linux:6::workstation
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-Xorg
Red Hat:enterprise_linux:6::workstation
 before 0:1.10.6-1.el6
0:1.10.6-1.el6
xorg-x11-server-common
Red Hat:enterprise_linux:6::workstation
 before 0:1.10.6-1.el6
0:1.10.6-1.el6

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBX.Org xorg 1.4 < 1.11.2 - File Permission Change2011-10-28

History

History
WhenChangedSources
2026-11-03aliasesEUVD
2026-11-02createdCVE List, Exploit-DB, GitHub Advisories, NVD, OSV

References

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