The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is
disabled, provides access to a busmastering-capable PCI passthrough
device before the IOMMU setup is complete, which allows local HVM
guest domains to gain privileges or cause a denial of service via a
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[Xen-devel] 20130701 [PATCH] libxl: suppress device assignment to HVM guest when there is no IOMMU
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