CVE-2017-10916

High

Description

The vCPU context-switch implementation in Xen through 4.8.x improperly interacts with the Memory Protection Extensions (MPX) and Protection Key (PKU) features, which makes it easier for guest OS users to defeat ASLR and other protection mechanisms, aka XSA-220.

SeverityHigh

CVSS7.5

Exploit probability—

ProductXen

PublishedJul 5, 2017

First seenJul 5, 2017

How to fix

Vendor advisories

security.gentoo.org/glsa/201708-03

Affected products

Product	Affected versions	Fixed in
xen xen	4.5.0, 4.5.1, 4.5.2, 4.5.3, 4.5.5, 4.6.0, 4.6.1, 4.6.2, 4.6.4, 4.6.5, 4.7.1, 4.8.0, 4.8.1	—

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