Allocation of Resources Without Limits or Throttling Affecting xen package, versions <4.14.3-1~deb11u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.82% (83rd percentile)

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  • Snyk IDSNYK-DEBIAN11-XEN-1569745
  • published26 Aug 2021
  • disclosed27 Aug 2021

Introduced: 26 Aug 2021

CVE-2021-28700  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Debian:11 xen to version 4.14.3-1~deb11u1 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 Debian. See How to fix? for Debian:11 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.

CVSS Scores

version 3.1