Denial of Service Vulnerability in Xen with Intel VT-d and Legacy PCI Bridge

CVE-2012-5634 · MEDIUM Severity

AV:A/AC:L/AU:N/C:N/I:N/A:C

Xen 4.2.x, 4.1.x, and 4.0, when using Intel VT-d for PCI passthrough, does not properly configure VT-d when supporting a device that is behind a legacy PCI Bridge, which allows local guests to cause a denial of service to other guests by injecting an interrupt.

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