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Memory Leak Affecting xen package, versions <4.15.4-r0

0.0
medium

Snyk CVSS

    Attack Complexity Low
    Scope Changed
    Availability High

    Threat Intelligence

    EPSS 0.05% (14th percentile)
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NVD
6.5 medium
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SUSE
6 medium

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  • Snyk ID SNYK-ALPINE315-XEN-3136344
  • published 20 Nov 2022
  • disclosed 1 Nov 2022
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Introduced: 1 Nov 2022

CVE-2022-42319 Open this link in a new tab
CWE-401 Open this link in a new tab

How to fix?

Upgrade Alpine:3.15 xen to version 4.15.4-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:3.15 relevant fixed versions and status.

Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large amounts of memory temporarily. This memory is freed only after the request has been finished completely. A request is regarded to be finished only after the guest has read the response message of the request from the ring page. Thus a guest not reading the response can cause xenstored to not free the temporary memory. This can result in memory shortages causing Denial of Service (DoS) of xenstored.

References