Ubuntu 14.04 LTS / 16.04 LTS / 17.10 / 18.04 LTS : qemu update (USN-3679-1) (Spectre)
Medium Nessus Plugin ID 110514
SynopsisThe remote Ubuntu host is missing one or more security-related
DescriptionKen Johnson and Jann Horn independently discovered that
microprocessors utilizing speculative execution of a memory read may
allow unauthorized memory reads via sidechannel attacks. An attacker
in the guest could use this to expose sensitive guest information,
including kernel memory. This update allows QEMU to expose new CPU
features added by AMD microcode updates to guests on amd64 and i386.
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 qemu, qemu-system and / or qemu-system-x86