Buffer overflow in target-arm/machine.c in QEMU before 1.7.2 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a negative value in cpreg_vmstate_array_len in a savevm image.
http://lists.nongnu.org/archive/html/qemu-stable/2014-07/msg00187.html
http://lists.gnu.org/archive/html/qemu-devel/2013-12/msg00394.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-May/133345.html
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d2ef4b61fe6d33d2a5dcf100a9b9440de341ad62