Common Vulnerabilities and Exposures assigned an identifier CVE-2013-1056 to the following vulnerability: Name: CVE-2013-1056 URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1056 Assigned: 20130111 Reference: UBUNTU:USN-1990-1 Reference: http://www.ubuntu.com/usn/USN-1990-1 X.org X server 1.13.3 and earlier, when not run as root, allows local users to cause a denial of service (crash) or possibly gain privileges via vectors involving cached xkb files.
Statement: Not vulnerable. This issue did not affect the versions of xorg-x11-server as shipped with Red Hat Enterprise Linux 5 and 6 as our products did not include the vulnerable patch. The vulnerability was introduced due to a Ubuntu specific patch, which we never used with the xorg-x11-server we ship with our products.