Vulnerability in Citrix Xen

CVE-2011-1898

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."

EPSS: 0.009 (54.5th percentile) — read the EPSS interpretation.

Affected products

  • Citrix Xen — versions 4.0.0, 4.0.1, 4.1.0
  • N/a — versions n/a

Weakness classification (CWE)

References