Ubuntu 6.06 LTS / 7.04 / 7.10 / 8.04 LTS : xorg-server vulnerabilities (USN-616-1)
Critical Nessus Plugin ID 33199
SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionMultiple flaws were found in the RENDER, RECORD, and Security extensions of X.org which did not correctly validate function arguments. An authenticated attacker could send specially crafted requests and gain root privileges or crash X. (CVE-2008-1377, CVE-2008-2360, CVE-2008-2361, CVE-2008-2362)
It was discovered that the MIT-SHM extension of X.org did not correctly validate the location of memory during an image copy. An authenticated attacker could exploit this to read arbitrary memory locations within X, exposing sensitive information. (CVE-2008-1379).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected packages.