Ubuntu 14.04 LTS / 14.10 : cgmanager vulnerability (USN-2451-1)
Low Nessus Plugin ID 80392
SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionSerge Hallyn discovered that cgmanager did not consistently enforce proper nesting when modifying cgroup properties. A local attacker in a privileged container could use this to set cgroup values for all cgroups.
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 cgmanager package.