CVE-2011-1898 Privilege escalation in n/a

High 7.4 Published 12 Aug 2011 Updated 6 Aug 2024

Guest OS users can gain host OS privileges via DMA-generated MSI interrupts when using PCI passthrough on Intel VT-d chipsets without interrupt remapping.

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-2011-1898?

CVE-2011-1898 is a high-severity vulnerability in n/a, published on 12 Aug 2011. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Xen 4.1 before 4.1.1 and 4.0 before 4.0.2, when using PCI passthrough on Intel VT-d chipsets that do not have interrupt remapping, allows guest OS users to gain host OS privileges by "using DMA to generate MSI interrupts by writing to the interrupt injection registers."

Weakness: CWE-264

Which versions are affected by CVE-2011-1898?

It affects 1 product.

Products include Citrix Xen.

How do I fix CVE-2011-1898?

Upgrade to a fixed version.

Is CVE-2011-1898 being exploited?

There is no known exploitation of CVE-2011-1898 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2011-1898, GHSA-567h-gr95-57mc.