CVE-2011-2512 Integer overflow in n/a
Guest users can trigger a crash or execute arbitrary code on the host by sending a negative virtqueue number, bypassing validation checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-2512?
CVE-2011-2512 is a medium-severity vulnerability in n/a, published on 21 Jun 2012. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-20
Which versions are affected by CVE-2011-2512?
It affects 1 product.
Products include Kvm Group Qemu-Kvm.
How do I fix CVE-2011-2512?
Apply the vendor's patch.
Is CVE-2011-2512 being exploited?
There is no known exploitation of CVE-2011-2512 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DSA-2270-1, GHSA-g293-9rv5-w2qx.