Heap-based buffer overflow in SPICE before 0.12.6 allows guest OS users to read and write to arbitrary memory locations on the host via guest QXL commands related to surface creation.
https://security.gentoo.org/glsa/201606-05
https://bugzilla.redhat.com/show_bug.cgi?id=1261889
http://www.ubuntu.com/usn/USN-2766-1
http://www.securitytracker.com/id/1033753
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.openwall.com/lists/oss-security/2015/10/06/4
http://www.debian.org/security/2015/dsa-3371
http://rhn.redhat.com/errata/RHSA-2015-1890.html
http://rhn.redhat.com/errata/RHSA-2015-1889.html
http://lists.freedesktop.org/archives/spice-devel/2015-October/022191.html