Ubuntu 16.04 LTS : linux-azure vulnerability (USN-3488-1)
Medium Nessus Plugin ID 104738
SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionIt was discovered that the KVM subsystem in the Linux kernel did not properly keep track of nested levels in guest page tables. A local attacker in a guest VM could use this to cause a denial of service (host OS crash) or possibly execute arbitrary code in the host OS.
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-4.11-azure and / or linux-image-azure packages.