CVE-2008-1952 Denial of service in n/a
A local attacker can crash the Xen PVFB backend by mapping excessive guest memory, causing a denial of service.
- 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-2008-1952?
CVE-2008-1952 is a low-severity denial of service vulnerability in n/a, published on 23 Jun 2008. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The backend for XenSource Xen Para Virtualized Frame Buffer (PVFB) in Xen ioemu does not properly restrict the frame buffer size, which allows attackers to cause a denial of service (crash) by mapping an arbitrary amount of guest memory.
Weakness: CWE-119
Which versions are affected by CVE-2008-1952?
It affects 1 product.
Products include Xensource Xen Para Virtualized Frame Buffer.
How do I fix CVE-2008-1952?
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-2008-1952 being exploited?
There is no known exploitation of CVE-2008-1952 in the wild and no public exploit code.
Sources
Also known as GHSA-9fj9-7hv4-wf6g.