CVE-2016-6258

High

Description

The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.

SeverityHigh
CVSS8.8
Exploit probability—
ProductXen
PublishedAug 2, 2016
First seenAug 2, 2016

How to fix

Affected products

ProductAffected versionsFixed in
xen xen3.4.0, 3.4.2, 3.4.3, 3.4.4, 4.0.0, 4.0.1, 4.0.3, 4.0.4, 4.1.0, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.3.0, 4.3.1, 4.4.0, 4.4.1, 4.5.0, 4.6.0, 4.6.1, 4.6.3, 4.7.0—
citrix xenserver6.0, 6.0.2, 6.1, 6.2.0, 6.5.0, 7.0—

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