Integer overflow in hw/virtio/virtio-crypto.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (QEMU process crash) or possibly execute arbitrary code on the host via a crafted virtio-crypto request, which triggers a heap-based buffer overflow.
https://security.gentoo.org/glsa/201702-28
https://lists.nongnu.org/archive/html/qemu-devel/2017-01/msg01368.html
https://bugzilla.redhat.com/show_bug.cgi?id=1420092
http://www.securityfocus.com/bid/96141
http://www.openwall.com/lists/oss-security/2017/02/08/2
http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=a08aaff811fb194950f79711d2afe5a892ae03a4