CVE-2012-3498 Denial of service in n/a
A local HVM guest kernel can crash the host or read memory due to a missing range check in Xen's PHYSDEVOP_map_pirq handler.
- 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-2012-3498?
CVE-2012-3498 is a medium-severity denial of service vulnerability in Citrix Xenserver, published on 23 Nov 2012. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
PHYSDEVOP_map_pirq in Xen 4.1 and 4.2 and Citrix XenServer 6.0.2 and earlier allows local HVM guest OS kernels to cause a denial of service (host crash) and possibly read hypervisor or guest memory via vectors related to a missing range check of map->index.
Weakness: CWE-20
Which versions are affected by CVE-2012-3498?
It affects 2 products.
Products include Citrix Xenserver, Xen Xen.
How do I fix CVE-2012-3498?
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-2012-3498 being exploited?
There is no known exploitation of CVE-2012-3498 in the wild and no public exploit code.
Other vulnerabilities in Citrix Xenserver
Sources
Also known as DEBIAN-CVE-2012-3498, GHSA-2gjh-pw8m-qmpj.