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Out-of-Bounds Affecting xen package, versions <4.9.0-r0

Severity

 Recommended
0.0
critical
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.64% (80th percentile)

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  • Snyk ID SNYK-ALPINE320-XEN-7012749
  • published 23 May 2024
  • disclosed 5 Jul 2017
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Introduced: 5 Jul 2017

CVE-2017-10920 Open this link in a new tab
CWE-119 Open this link in a new tab

How to fix?

Upgrade Alpine:3.20 xen to version 4.9.0-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:3.20 relevant fixed versions and status.

The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 1.