<p>Upgrade <code>Alpine:3.15</code> <code>xen</code> to version 4.7.1-r1 or higher.</p>

Race Condition Affecting xen package, versions <4.7.1-r1

Snyk CVSS

Attack Complexity High

Privileges Required High

Scope Changed

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS 0.06% (26^th percentile)

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Snyk ID SNYK-ALPINE315-XEN-1929424
published 21 Jul 2020
disclosed 23 Jan 2017

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Introduced: 23 Jan 2017

CVE-2016-9381 Open this link in a new tab CWE-362 Open this link in a new tab

How to fix?

Upgrade Alpine:3.15 xen to version 4.7.1-r1 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:3.15 relevant fixed versions and status.

Race condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data on shared rings, aka a "double fetch" vulnerability.