CVE-2011-1898

Name of the Vulnerable Software and Affected Versions Xen versions 4.0 through 4.0.1 Xen versions 4.1 through 4.1.0

Description The issue allows guest OS users to gain host OS privileges by using DMA to generate MSI interrupts by writing to the interrupt injection registers, specifically when using PCI passthrough on Intel VT-d chipsets that do not have interrupt remapping.

Recommendations For Xen versions 4.0 through 4.0.1, update to version 4.0.2 or later. For Xen versions 4.1 through 4.1.0, update to version 4.1.1 or later.