Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 68.6%
CVSS Severity
CVSS v2 Score 5.8
References
- http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commitdiff%3Bh=7157e2e23e89adcd436caeab31fdd6b47eded377
- http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00007.html
- http://rhn.redhat.com/errata/RHSA-2011-0919.html
- http://secunia.com/advisories/44458
- http://secunia.com/advisories/44648
- http://secunia.com/advisories/45158
- http://secunia.com/advisories/45170
- http://secunia.com/advisories/45301
- http://ubuntu.com/usn/usn-1165-1
- http://www.openwall.com/lists/oss-security/2011/06/28/13
- http://www.openwall.com/lists/oss-security/2011/06/29/15
- http://www.osvdb.org/74751
- https://hermes.opensuse.org/messages/9605323
- https://www.debian.org/security/2011/dsa-2270
- http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commitdiff%3Bh=7157e2e23e89adcd436caeab31fdd6b47eded377
- http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00007.html
- http://rhn.redhat.com/errata/RHSA-2011-0919.html
- http://secunia.com/advisories/44458
- http://secunia.com/advisories/44648
- http://secunia.com/advisories/45158
- http://secunia.com/advisories/45170
- http://secunia.com/advisories/45301
- http://ubuntu.com/usn/usn-1165-1
- http://www.openwall.com/lists/oss-security/2011/06/28/13
- http://www.openwall.com/lists/oss-security/2011/06/29/15
- http://www.osvdb.org/74751
- https://hermes.opensuse.org/messages/9605323
- https://www.debian.org/security/2011/dsa-2270