CVE-2011-2512

Medium

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.

SeverityMedium

CVSS5.8

Exploit probability—

ProductKvm Group Qemu-kvm

PublishedJun 21, 2012

First seenJun 21, 2012

How to fix

Vendor advisories

debian.org/security/2011/dsa-2270
hermes.opensuse.org/messages/9605323

Affected products

Product	Affected versions	Fixed in
kvm_group qemu-kvm	v ≤ 0.14.0, 0.12	—

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