Buffer overflow in virtio_net_load function in net/virtio-net.c in QEMU 1.3.0 through 1.7.x before 1.7.2 might allow remote attackers to execute arbitrary code via a large MAC table.
http://rhn.redhat.com/errata/RHSA-2014-0927.html
http://lists.nongnu.org/archive/html/qemu-stable/2014-07/msg00187.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-May/133345.html
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=98f93ddd84800f207889491e0b5d851386b459cf