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CVE-2017-8903 Affecting xen package, versions <4.8.1-r2

0.0
high

Snyk CVSS

    Attack Complexity Low
    Scope Changed
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.07% (32nd percentile)
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NVD
8.8 high

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  • Snyk ID SNYK-ALPINE314-XEN-1308635
  • published 21 Jul 2020
  • disclosed 11 May 2017
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Introduced: 11 May 2017

CVE-2017-8903 Open this link in a new tab

How to fix?

Upgrade Alpine:3.14 xen to version 4.8.1-r2 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:3.14 relevant fixed versions and status.

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.