Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS / 14.10 : qemu, qemu-kvm vulnerabilities (USN-2439-1)
High Nessus Plugin ID 80026
SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionMichael S. Tsirkin discovered that QEMU incorrectly handled certain parameters during ram load while performing a migration. An attacker able to manipulate savevm data could use this issue to possibly execute arbitrary code on the host. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, and Ubuntu 14.10. (CVE-2014-7840)
Paolo Bonzini discovered that QEMU incorrectly handled memory in the Cirrus VGA device. A malicious guest could possibly use this issue to write into memory of the host, leading to privilege escalation.
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 packages.