Access Restriction Bypass Affecting xen package, versions <4.7.1-r4


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.06% (27th percentile)

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  • Snyk ID SNYK-ALPINE320-XEN-7012650
  • published 23 May 2024
  • disclosed 26 Jan 2017

How to fix?

Upgrade Alpine:3.20 xen to version 4.7.1-r4 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:3.20 relevant fixed versions and status.

Xen through 4.8.x allows local 64-bit x86 HVM guest OS users to gain privileges by leveraging mishandling of SYSCALL singlestep during emulation.