CVE-2011-2512

The virtio_queue_notify in qemu-kvm 0.14.0 and earlier does not properly validate the virtqueue number, which allows guest users to cause a denial of service (guest crash) and possibly execute arbitrary code via a negative number in the Queue Notify field of the Virtio Header, which bypasses a signed comparison.

🔗 References (28)

• secalert@redhathttp://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commitdiff%3Bh=7157e2e23e89adcd436caeab31fdd6b47eded377
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2011-07/msg00007.html
• secalert@redhathttp://rhn.redhat.com/errata/RHSA-2011-0919.html
• secalert@redhathttp://secunia.com/advisories/44458
• secalert@redhathttp://secunia.com/advisories/44648
• secalert@redhathttp://secunia.com/advisories/45158
• secalert@redhathttp://secunia.com/advisories/45170
• secalert@redhathttp://secunia.com/advisories/45301
• secalert@redhathttp://ubuntu.com/usn/usn-1165-1
• secalert@redhathttp://www.openwall.com/lists/oss-security/2011/06/28/13
• secalert@redhathttp://www.openwall.com/lists/oss-security/2011/06/29/15
• secalert@redhathttp://www.osvdb.org/74751
• secalert@redhathttps://hermes.opensuse.org/messages/9605323
• secalert@redhathttps://www.debian.org/security/2011/dsa-2270
• af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commitdiff%3Bh=7157e2e23e89adcd436caeab31fdd6b47eded377