Vulnerability in X.org X Server
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 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.
Vulnerability class: Race Condition
Published · last modified .
CVSS v2 metric
CVSS v2 base score 1.9 (Low). Vector: AV:L/AC:M/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.006 (47.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- X.org X Server — versions 1.11.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.freedesktop.org/archives/xorg/2011-October/053680.html (mailing-list)
- cgit.freedesktop.org/xorg/xserver/commit/ (Patch)
- secunia.com/advisories/46460 (Vendor Advisory, third-party-advisory)
- rhn.redhat.com/errata/RHSA-2012-0939.html (vendor-advisory)
- secunia.com/advisories/49579 (Vendor Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2011-4029?
- CVE-2011-4029 is a vulnerability in X.org X Server, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). Published 2012-07-03.
- Is CVE-2011-4029 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.