CVE-2013-4329

xen: libxl partially sets up HVM passthrough even with disabled iommu

Published Sep 12, 2013 CVSS 2.0 · 6.5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DSA Debian DSA DSA-3006-1 xen security update
EUVD EUVD EUVD-2013-4216 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.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 6, 2024, 4:38 PM
Reserved
Jun 12, 2013, 12:00 AM
Status
Modified
Published
Sep 12, 2013, 6:37 PM
Modified
Jun 16, 2026, 11:57 PM
Severity
Important
Public date
Sep 10, 2013, 12:00 AM