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…
Does this matter?
Lower severity and a low EPSS score (1.90%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 5.8 MEDIUMAV:A/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 1.90% probability · 79th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- kvm group/qemu-kvm
- Source
- secalert@redhat.com
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/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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.