Integer overflow in the qcow_open function in block/qcow.c in QEMU before 1.7.2 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via a large image size, which triggers a buffer overflow or out-of-bounds read.
lists.fedoraproject.org/pipermail/package-announce/2014-June/134053.html
lists.nongnu.org/archive/html/qemu-stable/2014-07/msg00187.html
lists.opensuse.org/opensuse-security-announce/2015-05/msg00021.html
www.debian.org/security/2014/dsa-3044
www.securityfocus.com/bid/67391
lists.gnu.org/archive/html/qemu-devel/2014-05/msg02156.html