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Resource Exhaustion Affecting xen package, versions <4.11.1-r0

Severity

 Recommended
0.0
medium
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-7012460
  • published 23 May 2024
  • disclosed 17 Aug 2018
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Introduced: 17 Aug 2018

CVE-2018-15469 Open this link in a new tab
CWE-400 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 through 4.11.x. ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash).