Race condition - CVE-2011-4029
Published: July 3, 2012 / Updated: August 4, 2020
Vulnerability identifier: #VU33698
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2011-4029
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vendor:
Affected software:
Detailed vulnerability description
The vulnerability allows a local non-authenticated attacker to gain access to sensitive information.
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.
How to mitigate CVE-2011-4029
Install update from vendor's website.