CVE-2022-42331 Affecting xen package, versions <4.17.0+74-g3eac216e6e-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.27% (19th percentile)

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  • Snyk IDSNYK-ECHOLATEST-XEN-18388916
  • published29 Jul 2026
  • disclosed21 Mar 2023

Introduced: 21 Mar 2023

CVE-2022-42331  (opens in a new tab)

How to fix?

Upgrade Echo:latest xen to version 4.17.0+74-g3eac216e6e-1 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 Echo. See How to fix? for Echo:latest relevant fixed versions and status.

x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.

CVSS Base Scores

version 3.1