CVE-2022-23960 Affecting xen package, versions <4.13.4-r3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.06% (26th percentile)

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  • Snyk IDSNYK-ALPINE312-XEN-2803068
  • published25 Apr 2022
  • disclosed13 Mar 2022

Introduced: 13 Mar 2022

CVE-2022-23960  (opens in a new tab)

How to fix?

Upgrade Alpine:3.12 xen to version 4.13.4-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:3.12 relevant fixed versions and status.

Certain Arm Cortex and Neoverse processors through 2022-03-08 do not properly restrict cache speculation, aka Spectre-BHB. An attacker can leverage the shared branch history in the Branch History Buffer (BHB) to influence mispredicted branches. Then, cache allocation can allow the attacker to obtain sensitive information.

CVSS Scores

version 3.1