CVE-2013-6400 Privilege escalation in n/a
Local guest administrators can crash the host or gain privileges via IOMMU TLB flush failures when using Intel VT-d with assigned PCI devices.
- 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-2013-6400?
CVE-2013-6400 is a medium-severity vulnerability in Xen Xen, published on 13 Dec 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 using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to not be flushed and allows local guest administrators to cause a denial of service (host crash) or gain privileges via unspecified vectors.
Weakness: CWE-264
Which versions are affected by CVE-2013-6400?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2013-6400?
Apply the vendor's patch.
Is CVE-2013-6400 being exploited?
There is no known exploitation of CVE-2013-6400 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2013-6400, GHSA-f6x8-9q7w-8j23.