CVE-2011-4028
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.
Does this matter?
Lower severity and a low EPSS score (0.37%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 1.2 LOWAV:L/AC:H/Au:N/C:P/I:N/A:N
- EPSS
- 0.37% probability · 31th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-59
- Affected
- x.org/x server
- Source
- cve@mitre.org
EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://cgit.freedesktop.org/xorg/xserver/commit/?id=6ba44b91e37622ef8c146d8f2ac92d708a18ed34
- 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
- http://cgit.freedesktop.org/xorg/xserver/commit/?id=6ba44b91e37622ef8c146d8f2ac92d708a18ed34
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.