Ubuntu 12.04 LTS : linux-lts-raring vulnerabilities (USN-1971-1)
Medium Nessus Plugin ID 70192
SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionVince Weaver discovered a flaw in the perf subsystem of the Linux kernel on ARM platforms. A local user could exploit this flaw to gain privileges or cause a denial of service (system crash).
A memory leak was discovered in the user namespace facility of the Linux kernel. A local user could cause a denial of service (memory consumption) via the CLONE_NEWUSER unshare call. (CVE-2013-4205).
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 linux-image-3.8-generic package.