Resource Exhaustion Affecting nova package, versions <2:16.0.3-6


0.0
high

Snyk CVSS

    Attack Complexity Low
    Scope Changed
    Availability High

    Threat Intelligence

    EPSS 0.65% (79th percentile)
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NVD
8.6 high
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Red Hat
5.3 medium

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  • Snyk ID SNYK-DEBIAN11-NOVA-515567
  • published 5 Dec 2017
  • disclosed 5 Dec 2017

How to fix?

Upgrade Debian:11 nova to version 2:16.0.3-6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nova package and not the nova package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

An issue was discovered in the default FilterScheduler in OpenStack Nova 16.0.3. By repeatedly rebuilding an instance with new images, an authenticated user may consume untracked resources on a hypervisor host leading to a denial of service, aka doubled resource allocations. This regression was introduced with the fix for OSSA-2017-005 (CVE-2017-16239); however, only Nova stable/pike or later deployments with that fix applied and relying on the default FilterScheduler are affected.