CVE-2011-2512
5.8 Medium
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:P/I:P/A:P
7.3 High
AI Score
Confidence
High
0.006 Low
EPSS
Percentile
78.0%
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.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| kvm_group:qemu-kvm | kvm group qemu-kvm | le | 0.14.0 |
| kvm_group:qemu-kvm | kvm group qemu-kvm | eq | 0.12 |
References
git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commitdiff%3Bh=7157e2e23e89adcd436caeab31fdd6b47eded377
lists.opensuse.org/opensuse-security-announce/2011-07/msg00007.html
rhn.redhat.com/errata/RHSA-2011-0919.html
secunia.com/advisories/44458
secunia.com/advisories/44648
secunia.com/advisories/45158
secunia.com/advisories/45170
secunia.com/advisories/45301
ubuntu.com/usn/usn-1165-1
www.openwall.com/lists/oss-security/2011/06/28/13
www.openwall.com/lists/oss-security/2011/06/29/15
www.osvdb.org/74751
hermes.opensuse.org/messages/9605323
www.debian.org/security/2011/dsa-2270
Social References
More
Related
5.8 Medium
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:P/I:P/A:P
7.3 High
AI Score
Confidence
High
0.006 Low
EPSS
Percentile
78.0%