The KVM subsystem in the Linux kernel through 3.12.5 allows local users to gain privileges or cause a denial of service (system crash) via a VAPIC synchronization operation involving a page-end address.
https://bugzilla.redhat.com/show_bug.cgi?id=1032210
http://www.ubuntu.com/usn/USN-2141-1
http://www.ubuntu.com/usn/USN-2139-1
http://www.ubuntu.com/usn/USN-2138-1
http://www.ubuntu.com/usn/USN-2136-1
http://www.ubuntu.com/usn/USN-2135-1
http://www.ubuntu.com/usn/USN-2134-1
http://www.ubuntu.com/usn/USN-2133-1
http://www.ubuntu.com/usn/USN-2117-1
http://www.ubuntu.com/usn/USN-2113-1
http://www.securityfocus.com/bid/64291
http://www.openwall.com/lists/oss-security/2013/12/12/12
http://rhn.redhat.com/errata/RHSA-2014-0284.html
http://rhn.redhat.com/errata/RHSA-2014-0163.html
http://rhn.redhat.com/errata/RHSA-2013-1801.html
http://lists.opensuse.org/opensuse-updates/2014-02/msg00045.html
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html