CVE-2013-4551 Denial of service in n/a
Local HVM guest users can crash the host system by exploiting improper checks in VMLAUNCH and VMRESUME emulation paths when nested virtualization is disabled.
- 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-2013-4551?
CVE-2013-4551 is a medium-severity denial of service vulnerability in Xen Xen, published on 15 Nov 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 and 4.3.x, when nested virtualization is disabled, does not properly check the emulation paths for (1) VMLAUNCH and (2) VMRESUME, which allows local HVM guest users to cause a denial of service (host crash) via unspecified vectors related to "guest VMX instruction execution."
Weakness: CWE-20
Which versions are affected by CVE-2013-4551?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2013-4551?
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-2013-4551 being exploited?
There is no known exploitation of CVE-2013-4551 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2013-4551, GHSA-x975-qcf7-3vh2.