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Access Restriction Bypass Affecting xen package, versions <4.7.0-r1

Severity

 Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.06% (28th percentile)

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  • Snyk ID SNYK-ALPINE320-XEN-7012668
  • published 23 May 2024
  • disclosed 21 Sep 2016
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Introduced: 21 Sep 2016

CVE-2016-7092 Open this link in a new tab
CWE-264 Open this link in a new tab

How to fix?

Upgrade Alpine:3.20 xen to version 4.7.0-r1 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 get_page_from_l3e function in arch/x86/mm.c in Xen allows local 32-bit PV guest OS administrators to gain host OS privileges via vectors related to L3 recursive pagetables.