CVE-2011-3131 Denial of service in n/a
A local guest OS with PCI device control can cause host denial of service via crafted DMA requests triggering a livelock in Xen hypervisor.
- 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-2011-3131?
CVE-2011-3131 is a medium-severity denial of service vulnerability in Xen Xen, published on 13 Dec 2012. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Xen 4.1.1 and earlier allows local guest OS kernels with control of a PCI[E] device to cause a denial of service (CPU consumption and host hang) via many crafted DMA requests that are denied by the IOMMU, which triggers a livelock.
Weakness: CWE-399
Which versions are affected by CVE-2011-3131?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2011-3131?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2011-3131 being exploited?
There is no known exploitation of CVE-2011-3131 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2011-3131, GHSA-86mp-q3fq-9h73.