Vulnerability: Denial of Service and Arbitrary Code Execution in virtio_queue_notify in qemu-kvm

CVE-2011-2512 · MEDIUM Severity

AV:A/AC:L/AU:N/C:P/I:P/A:P

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.

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