<p>Upgrade <code>Alpine:3.15</code> <code>xen</code> to version 4.15.2-r2 or higher.</p>

Race Condition Affecting xen package, versions <4.15.2-r2

Snyk CVSS

Attack Complexity High

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS 0.05% (14^th percentile)

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Snyk ID SNYK-ALPINE315-XEN-2945001
published 16 Apr 2022
disclosed 5 Apr 2022

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Introduced: 5 Apr 2022

CVE-2022-26357 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 4.15.2-r2 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 in VT-d domain ID cleanup Xen domain IDs are up to 15 bits wide. VT-d hardware may allow for only less than 15 bits to hold a domain ID associating a physical device with a particular domain. Therefore internally Xen domain IDs are mapped to the smaller value range. The cleaning up of the housekeeping structures has a race, allowing for VT-d domain IDs to be leaked and flushes to be bypassed.