<p>Upgrade <code>Alpine:3.20</code> <code>xen</code> to version 4.15.0-r2 or higher.</p>

Allocation of Resources Without Limits or Throttling Affecting xen package, versions <4.15.0-r2

Threat Intelligence

0.82% (83^rd percentile)

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Snyk ID SNYK-ALPINE320-XEN-7012433
published 23 May 2024
disclosed 27 Aug 2021

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Introduced: 27 Aug 2021

CVE-2021-28700 Open this link in a new tab CWE-770 Open this link in a new tab

How to fix?

Upgrade Alpine:3.20 xen to version 4.15.0-r2 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.

xen/arm: No memory limit for dom0less domUs The dom0less feature allows an administrator to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit from them is not set. This allow a domain to allocate memory beyond what an administrator originally configured.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Network
Attack Complexity (AC)

Low
Privileges Required (PR)

High
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

None
Integrity (I)

None
Availability (A)

High