Description
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.
Metrics
CVSS 2.0 6.5/10
AV:A/AC:H/Au:S/C:C/I:C/A:CWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- Sep 12, 2013
- Last modified
- Jun 16, 2026
- NVD status
- Modified