CVE-2016-9932: Infoleak

First published: Thu Jan 26 2017(Updated: )

CMPXCHG8B emulation in Xen 3.3.x through 4.7.x on x86 systems allows local HVM guest OS users to obtain sensitive information from host stack memory via a "supposedly-ignored" operand size prefix.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Xen Xen	=3.3.0
Xen Xen	=3.3.1
Xen Xen	=3.3.2
Xen Xen	=3.4.0
Xen Xen	=3.4.1
Xen Xen	=3.4.2
Xen Xen	=3.4.3
Xen Xen	=3.4.4
Xen Xen	=4.0.0
Xen Xen	=4.0.1
Xen Xen	=4.0.2
Xen Xen	=4.0.3
Xen Xen	=4.0.4
Xen Xen	=4.1.0
Xen Xen	=4.1.1
Xen Xen	=4.1.2
Xen Xen	=4.1.3
Xen Xen	=4.1.4
Xen Xen	=4.1.5
Xen Xen	=4.1.6
Xen Xen	=4.1.6.1
Xen Xen	=4.2.0
Xen Xen	=4.2.1
Xen Xen	=4.2.2
Xen Xen	=4.2.3
Xen Xen	=4.2.4
Xen Xen	=4.2.5
Xen Xen	=4.3.0
Xen Xen	=4.3.1
Xen Xen	=4.3.2
Xen Xen	=4.3.3
Xen Xen	=4.3.4
Xen Xen	=4.4.0
Xen Xen	=4.4.1
Xen Xen	=4.4.2
Xen Xen	=4.4.3
Xen Xen	=4.4.4
Xen Xen	=4.5.0
Xen Xen	=4.5.1
Xen Xen	=4.5.2
Xen Xen	=4.5.3
Xen Xen	=4.5.5
Xen Xen	=4.6.0
Xen Xen	=4.6.3
Xen Xen	=4.7.0

Remedy

http://xenbits.xen.org/xsa/advisory-200.html

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