CVE-2012-5634 Denial of service in n/a
Local guests can cause denial of service to other guests by injecting interrupts when Intel VT-d is used with legacy PCI bridges.
- 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-2012-5634?
CVE-2012-5634 is a medium-severity denial of service vulnerability in Xen Xen, published on 14 Feb 2013. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Xen 4.2.x, 4.1.x, and 4.0, when using Intel VT-d for PCI passthrough, does not properly configure VT-d when supporting a device that is behind a legacy PCI Bridge, which allows local guests to cause a denial of service to other guests by injecting an interrupt.
Weakness: CWE-16
Which versions are affected by CVE-2012-5634?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2012-5634?
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-2012-5634 being exploited?
There is no known exploitation of CVE-2012-5634 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2012-5634, GHSA-wmqh-ggr8-mwm7.