Improper Input Validation Affecting xen package, versions <4.11.1-r0


0.0
medium

Snyk CVSS

    Attack Complexity Low
    Scope Changed
    Availability High

    Threat Intelligence

    EPSS 0.06% (25th percentile)
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NVD
6.5 medium
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SUSE
5.6 medium

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  • Snyk ID SNYK-ALPINE315-XEN-1929983
  • published 21 Jul 2020
  • disclosed 8 Dec 2018

How to fix?

Upgrade Alpine:3.15 xen to version 4.11.1-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.

An issue was discovered in Xen through 4.11.x on Intel x86 platforms allowing guest OS users to cause a denial of service (host OS hang) because Xen does not work around Intel's mishandling of certain HLE transactions associated with the KACQUIRE instruction prefix.