Bug 1519231 (CVE-2017-17051) - CVE-2017-17051 openstack-nova: Nova FilterScheduler doubles resource allocations during rebuild with new image
Summary: CVE-2017-17051 openstack-nova: Nova FilterScheduler doubles resource allocati...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-17051
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1508541
TreeView+ depends on / blocked
 
Reported: 2017-11-30 13:14 UTC by Andrej Nemec
Modified: 2021-02-17 01:10 UTC (History)
24 users (show)

Fixed In Version:
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Last Closed: 2017-12-07 05:32:37 UTC
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Description Andrej Nemec 2017-11-30 13:14:27 UTC 
It was found that 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. 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.

Bug report:

https://launchpad.net/bugs/1732976
Comment 1 Andrej Nemec 2017-11-30 13:14:30 UTC 
Acknowledgments:

Name: the OpenStack project
Upstream: Matt Riedemann (Huawei)
Comment 2 Joshua Padman 2017-12-07 05:32:41 UTC 
Statement:

This vulnerability was caused by the fix for a prior vulnerability (CVE-2017-16239). No patches for the earlier vulnerability were released for Red Hat OpenStack before the discover of the new vulnerability. Therefore, current versions of Red Hat OpenStack are not affected by this vulnerability.
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