Vulnerability Description
The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly verify the TTY of a user who is starting X, which allows local users to bypass intended access restrictions by associating stdin with a file that is misinterpreted as the console TTY.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| X.Org | X Server | - |
| Canonical | Ubuntu Linux | 10.04 |
| Debian | Debian Linux | All versions |
| Ubuntu | Linux | All versions |
Related Weaknesses (CWE)
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=652249Vendor Advisory
- http://www.debian.org/security/2011/dsa-2364Vendor Advisory
- http://www.ubuntu.com/usn/USN-1349-1Vendor Advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=652249Vendor Advisory
- http://www.debian.org/security/2011/dsa-2364Vendor Advisory
- http://www.ubuntu.com/usn/USN-1349-1Vendor Advisory
FAQ
What is CVE-2011-4613?
CVE-2011-4613 is a vulnerability with a CVSS score of 4.6 (MEDIUM). The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly verify the TTY of a user who is starting X, which allows local users to bypass intended access restrictio...
How severe is CVE-2011-4613?
CVE-2011-4613 has been rated MEDIUM with a CVSS base score of 4.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-4613?
Check the references section above for vendor advisories and patch information. Affected products include: X.Org X Server, Canonical Ubuntu Linux, Debian Debian Linux, Ubuntu Linux.