Published: 05/07/2017 Updated: 04/11/2017

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

The vCPU context-switch implementation in Xen up to and including 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.

Vulnerable Product	Search on Vulmon	Subscribe to Product
xen xen 4.6.0
xen xen 4.6.1
xen xen 4.5.3
xen xen 4.5.5
xen xen 4.8.1
xen xen 4.5.0
xen xen 4.6.2
xen xen 4.6.4
xen xen 4.6.5
xen xen 4.5.1
xen xen 4.5.2
xen xen 4.7.1
xen xen 4.8.0

The vCPU context-switch implementation in Xen through 48x 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 ...

CWE-200 https://xenbits.xen.org/xsa/advisory-220.html http://www.securitytracker.com/id/1038730 http://www.securityfocus.com/bid/99167 https://security.gentoo.org/glsa/201708-03 http://www.debian.org/security/2017/dsa-3969 https://nvd.nist.gov https://access.redhat.com/security/cve/cve-2017-10916

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CVE-2017-10916

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