Vulnerability: Privilege Escalation via DMA-Generated MSI Interrupts

CVE-2011-1898 · HIGH Severity

AV:A/AC:M/AU:S/C:C/I:C/A:C

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."

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