Ubuntu 16.04 LTS : linux-kvm vulnerabilities (USN-3549-1) (Spectre)
Medium Nessus Plugin ID 106483
SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionJann Horn discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Spectre. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2017-5715, CVE-2017-5753).
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-4.4-kvm and / or linux-image-kvm packages.