Information Exposure Affecting xen package, versions <4.7.1-r3


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.06% (27th percentile)

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  • Snyk IDSNYK-ALPINE316-XEN-2845926
  • published21 Jul 2020
  • disclosed26 Jan 2017

Introduced: 26 Jan 2017

CVE-2016-9932  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Alpine:3.16 xen to version 4.7.1-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Alpine. See How to fix? for Alpine:3.16 relevant fixed versions and status.

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.