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NULL Pointer Dereference Affecting xen package, versions <4.11.1-r0

Severity

 Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.05% (22nd percentile)

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  • Snyk ID SNYK-ALPINE320-XEN-7012418
  • published 23 May 2024
  • disclosed 1 Nov 2018
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Introduced: 1 Nov 2018

CVE-2018-18883 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade Alpine:3.20 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:3.20 relevant fixed versions and status.

An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted.