Vulnerability Details : 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 category: Denial of service
Products affected by CVE-2011-4029
- cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:x.org:x_server:1.11.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2011-4029
0.27%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 48 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-4029
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
1.9
|
LOW | AV:L/AC:M/Au:N/C:P/I:N/A:N |
3.4
|
2.9
|
NIST |
CWE ids for CVE-2011-4029
-
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-4029
-
http://secunia.com/advisories/46460
Sign inVendor Advisory
-
http://secunia.com/advisories/49579
Sign inVendor Advisory
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http://cgit.freedesktop.org/xorg/xserver/commit/?id=b67581cf825940fdf52bf2e0af4330e695d724a4
xorg/xserver - X server (mirrored from https://gitlab.freedesktop.org/xorg/xserver)Patch
-
http://lists.freedesktop.org/archives/xorg/2011-October/053680.html
404 Not Found
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http://rhn.redhat.com/errata/RHSA-2012-0939.html
RHSA-2012:0939 - Security Advisory - Red Hat Customer Portal
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