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.

• CWE-20

• 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/44458Vendor Advisory
• http://secunia.com/advisories/44648Vendor Advisory
• http://secunia.com/advisories/45158Vendor Advisory
• http://secunia.com/advisories/45170Vendor Advisory
• http://secunia.com/advisories/45301Vendor Advisory
• http://ubuntu.com/usn/usn-1165-1
• http://www.openwall.com/lists/oss-security/2011/06/28/13Patch
• http://www.openwall.com/lists/oss-security/2011/06/29/15Patch
• 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/44458Vendor Advisory
• http://secunia.com/advisories/44648Vendor Advisory
• http://secunia.com/advisories/45158Vendor Advisory
• http://secunia.com/advisories/45170Vendor Advisory
• http://secunia.com/advisories/45301Vendor Advisory
• http://ubuntu.com/usn/usn-1165-1
• http://www.openwall.com/lists/oss-security/2011/06/28/13Patch
• http://www.openwall.com/lists/oss-security/2011/06/29/15Patch
• http://www.osvdb.org/74751
• https://hermes.opensuse.org/messages/9605323
• https://www.debian.org/security/2011/dsa-2270

Published

Jun 21, 2012

Last Modified

Jun 16, 2026

Status

Modified

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