CVE-2012-5510 Denial of service in n/a
Local guest OS administrators can crash the Xen hypervisor by exploiting improper grant table version downgrade handling.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-5510?
CVE-2012-5510 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.x, when downgrading the grant table version, does not properly remove the status page from the tracking list when freeing the page, which allows local guest OS administrators to cause a denial of service (hypervisor crash) via unspecified vectors.
Which versions are affected by CVE-2012-5510?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2012-5510?
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-2012-5510 being exploited?
There is no known exploitation of CVE-2012-5510 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2012-5510, GHSA-9vf6-5gq4-g9w2.