Heap-based buffer overflow in the ne2000_receive function in hw/net/ne2000.c in QEMU before 2.4.0.1 allows guest OS users to cause a denial of service (instance crash) or possibly execute arbitrary code via vectors related to receiving packets.
https://www.arista.com/en/support/advisories-notices/security-advisories/1188-security-advisory-14
https://security.gentoo.org/glsa/201602-01
https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg03984.html
http://www.securitytracker.com/id/1033569
http://www.securityfocus.com/bid/76746
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.openwall.com/lists/oss-security/2015/09/15/3
http://www.debian.org/security/2015/dsa-3362
http://www.debian.org/security/2015/dsa-3361
http://rhn.redhat.com/errata/RHSA-2015-1925.html
http://rhn.redhat.com/errata/RHSA-2015-1924.html
http://rhn.redhat.com/errata/RHSA-2015-1923.html
http://rhn.redhat.com/errata/RHSA-2015-1896.html
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00019.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167369.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169039.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169036.html
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=7aa2bcad0ca837dd6d4bf4fa38a80314b4a6b755