CVE-2022-42327 Affecting xen package, versions <4.15.4-r0


0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High

    Threat Intelligence

    EPSS 0.05% (16th percentile)
Expand this section
NVD
7.1 high
Expand this section
SUSE
2.5 low

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-ALPINE315-XEN-3136345
  • published 20 Nov 2022
  • disclosed 1 Nov 2022

How to fix?

Upgrade Alpine:3.15 xen to version 4.15.4-r0 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.

x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist between two guests.