CVE-2016-9932: Infoleak

Published 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.

Affected Software

45 affected components
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

Event History

Jan 26, 2017
CVE Published
via MITRE·03:00 PM
Data Sourced
via MITRE·03:00 PM
Description
Data Sourced
via NVD·03:59 PM
RemedyDescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2016-9932?

CVE-2016-9932 has been rated as a high severity vulnerability due to its potential to expose sensitive host memory information.

2

How do I fix CVE-2016-9932?

To mitigate CVE-2016-9932, it is recommended to upgrade to Xen version 4.7 or later.

3

Who is affected by CVE-2016-9932?

CVE-2016-9932 affects local users of HVM guest operating systems running on vulnerable versions of Xen.

4

What platforms are impacted by CVE-2016-9932?

CVE-2016-9932 impacts x86 systems running Xen versions from 3.3.x to 4.7.x.

5

What type of vulnerability is CVE-2016-9932?

CVE-2016-9932 is a local information disclosure vulnerability that allows sensitive data exposure from the host stack.

Contact

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