Homepage
About Snyk

Allocation of Resources Without Limits or Throttling Affecting xen package, versions <4.15.2-r0

0.0
high

Snyk CVSS

    Attack Complexity Low
    Scope Changed
    Availability High

    Threat Intelligence

    EPSS 0.25% (65th percentile)
Expand this section
NVD
8.6 high
Expand this section
SUSE
5.5 medium

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-ALPINE315-XEN-2766342
  • published 16 Apr 2022
  • disclosed 24 Nov 2021
Report a new vulnerability Found a mistake?

Introduced: 24 Nov 2021

CVE-2021-28706 Open this link in a new tab
CWE-770 Open this link in a new tab

How to fix?

Upgrade Alpine:3.15 xen to version 4.15.2-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.

guests may exceed their designated memory limit When a guest is permitted to have close to 16TiB of memory, it may be able to issue hypercalls to increase its memory allocation beyond the administrator established limit. This is a result of a calculation done with 32-bit precision, which may overflow. It would then only be the overflowed (and hence small) number which gets compared against the established upper bound.