CVE-2011-4028
The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to...
1.2 LowFix available
CVE-2011-4028 is a low vulnerability (CVSS 1.2) in X.org X Server, published July 3, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 31st 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 determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.
Exploit likelihood
0.37%Down 0.6 points since Feb 4, 2022
What each source reports
NVD Score used
The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.
- Record
CVE-2011-4028- CVSS 2.0
- 1.2 Low
AV:L/AC:H/Au:N/C:P/I:N/A:N - Weakness
- CWE-59
- 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 determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.
- Record
CVE-2011-4028- Updated
- 2026-11-02
EUVDEUVD-2011-3981 No score
The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.
- Record
EUVD-2011-3981- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-43jf-fxqp-3qf7 No score
The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to...
The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.
- Record
GHSA-43jf-fxqp-3qf7- Weakness
- CWE-59
- 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 determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.
- Record
CVE-2011-4028- Updated
- 2026-11-02
OSVDEBIAN-CVE-2011-4028 No score
The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.
- Record
DEBIAN-CVE-2011-4028- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
xorg-serverDebian:12 |
before 2:1.11.1.901-2 | 2:1.11.1.901-2 |
xorg-serverDebian:13 |
before 2:1.11.1.901-2 | 2:1.11.1.901-2 |
xorg-serverDebian:14 |
before 2:1.11.1.901-2 | 2:1.11.1.901-2 |
xorg-x11-serverRed Hat:enterprise_linux:5::client_workstation |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-debuginfoRed Hat:enterprise_linux:5::client_workstation |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-sdkRed Hat:enterprise_linux:5::client_workstation |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-serverRed Hat:enterprise_linux:5::client |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-XdmxRed Hat:enterprise_linux:5::client |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-XephyrRed Hat:enterprise_linux:5::client |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-XnestRed Hat:enterprise_linux:5::client |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
Show 53 moreShow less
| Package | Affected | Fixed |
|---|---|---|
xorg-x11-server-XorgRed Hat:enterprise_linux:5::client |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-XvfbRed Hat:enterprise_linux:5::client |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-Xvnc-sourceRed Hat:enterprise_linux:5::client |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-debuginfoRed Hat:enterprise_linux:5::client |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-serverRed Hat:enterprise_linux:5::server |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-XdmxRed Hat:enterprise_linux:5::server |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-XephyrRed Hat:enterprise_linux:5::server |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-XnestRed Hat:enterprise_linux:5::server |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-XorgRed Hat:enterprise_linux:5::server |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-XvfbRed Hat:enterprise_linux:5::server |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-Xvnc-sourceRed Hat:enterprise_linux:5::server |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-debuginfoRed Hat:enterprise_linux:5::server |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-server-sdkRed Hat:enterprise_linux:5::server |
before 0:1.1.1-48.90.el5 | 0:1.1.1-48.90.el5 |
xorg-x11-serverRed Hat:enterprise_linux:6::client |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XdmxRed Hat:enterprise_linux:6::client |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XnestRed Hat:enterprise_linux:6::client |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XvfbRed Hat:enterprise_linux:6::client |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-debuginfoRed Hat:enterprise_linux:6::client |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-develRed Hat:enterprise_linux:6::client |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-sourceRed Hat:enterprise_linux:6::client |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XephyrRed Hat:enterprise_linux:6::client |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XorgRed Hat:enterprise_linux:6::client |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-commonRed Hat:enterprise_linux:6::client |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-serverRed Hat:enterprise_linux:6::computenode |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XdmxRed Hat:enterprise_linux:6::computenode |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XephyrRed Hat:enterprise_linux:6::computenode |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XnestRed Hat:enterprise_linux:6::computenode |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XorgRed Hat:enterprise_linux:6::computenode |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XvfbRed Hat:enterprise_linux:6::computenode |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-commonRed Hat:enterprise_linux:6::computenode |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-debuginfoRed Hat:enterprise_linux:6::computenode |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-develRed Hat:enterprise_linux:6::computenode |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-sourceRed Hat:enterprise_linux:6::computenode |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-serverRed Hat:enterprise_linux:6::server |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XdmxRed Hat:enterprise_linux:6::server |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XnestRed Hat:enterprise_linux:6::server |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XvfbRed Hat:enterprise_linux:6::server |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-debuginfoRed Hat:enterprise_linux:6::server |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-develRed Hat:enterprise_linux:6::server |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-sourceRed Hat:enterprise_linux:6::server |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XephyrRed Hat:enterprise_linux:6::server |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XorgRed Hat:enterprise_linux:6::server |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-commonRed Hat:enterprise_linux:6::server |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-serverRed Hat:enterprise_linux:6::workstation |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XdmxRed Hat:enterprise_linux:6::workstation |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XnestRed Hat:enterprise_linux:6::workstation |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XvfbRed Hat:enterprise_linux:6::workstation |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-debuginfoRed Hat:enterprise_linux:6::workstation |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-develRed Hat:enterprise_linux:6::workstation |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-sourceRed Hat:enterprise_linux:6::workstation |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XephyrRed Hat:enterprise_linux:6::workstation |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-XorgRed Hat:enterprise_linux:6::workstation |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
xorg-x11-server-commonRed Hat:enterprise_linux:6::workstation |
before 0:1.10.6-1.el6 | 0:1.10.6-1.el6 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
cgit.freedesktop.org/xorg/xserver/commit?id=6ba44b91e37622ef8c146d8f2ac92d708a18ed34
lists.freedesktop.org/archives/xorg/2011-October/053680.html
secunia.com/advisories/46460
rhn.redhat.com/errata/RHSA-2012-0939.html
nvd.nist.gov/vuln/detail/CVE-2011-4028
Show 25 moreShow less
github.com/advisories/GHSA-43jf-fxqp-3qf7
security-tracker.debian.org/tracker/CVE-2011-4028
access.redhat.com/errata/RHSA-2012:0303
bugzilla.redhat.com/show_bug.cgi?id=454409
security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_0303.json
cve.org/CVERecord?id=CVE-2011-4028