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HIGH

xen: Insufficient TLB flushing in VT-d (iommu) code

Published Nov 23, 2013

Description

Xen 4.2.x and 4.3.x, when using Intel VT-d for PCI passthrough, does not properly flush the TLB after clearing a present translation table entry, which allows local guest administrators to cause a denial of service or gain privileges via unspecified vectors related to an "inverted boolean parameter."

Affected products

Remediation

Red Hat statement

Not vulnerable. This issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5. This issue did not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG as we did not have support for Xen hypervisor.

Metrics

Weaknesses (1)

References (9)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Nov 23, 2013
Updated Aug 6, 2024
Reserved Nov 4, 2013
NVD
Status Modified
Modified Jun 17, 2026
Red Hat
Severity Important
Public date Nov 20, 2013