Incomplete Cleanup Affecting xen package, versions <4.15.4-r0


0.0
medium

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 0.05% (13th percentile)
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NVD
5.5 medium
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SUSE
6 medium

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  • Snyk ID SNYK-ALPINE315-XEN-3136348
  • published 20 Nov 2022
  • disclosed 1 Nov 2022

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 create orphaned Xenstore nodes By creating multiple nodes inside a transaction resulting in an error, a malicious guest can create orphaned nodes in the Xenstore data base, as the cleanup after the error will not remove all nodes already created. When the transaction is committed after this situation, nodes without a valid parent can be made permanent in the data base.