Privilege Escalation and Denial of Service Vulnerability in Xen's libxl Library

CVE-2013-4329 · MEDIUM Severity

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

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 DMA instruction.

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