Bug 993331 - (CVE-2013-4185) CVE-2013-4185 OpenStack: Nova network source security groups denial of service
CVE-2013-4185 OpenStack: Nova network source security groups denial of service
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
: Security
Depends On: 993333 993334 994816 994817 995297
Blocks: 993335
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Reported: 2013-08-05 15:58 EDT by Kurt Seifried
Modified: 2016-12-04 15:39 EST (History)
11 users (show)

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Doc Type: Bug Fix
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Description Kurt Seifried 2013-08-05 15:58:04 EDT
Jeremy Stanley (jeremy@openstack.org) reports: 

Title: Denial of Service in Nova network source security groups
Reporter: Vishvananda Ishaya (Nebula)
Products: Nova
Affects: All versions

Vishvananda Ishaya from Nebula reported a denial of service
vulnerability in Nova's handling of network source security group
policy updates. By performing a large number of server creation
operations, the proportion of updates increases quadratically and
may overwhelm nova-network such that it is no longer able to service
other requests in a timely fashion. Only setups relying on
nova-network are affected.

Havana (development branch) fix:

Grizzly fix:

Folsom fix:

This fix will be included in the 2013.2.b3 development milestone and
in a future 2013.1.3 release.
Comment 3 Vincent Danen 2013-08-06 16:44:56 EDT
This is now public:

Comment 4 Kurt Seifried 2013-08-08 00:50:27 EDT
Created openstack-nova tracking bugs for this issue:

Affects: fedora-all [bug 994816]
Affects: epel-6 [bug 994817]
Comment 6 Murray McAllister 2013-09-03 00:42:34 EDT

Red Hat would like to thank the OpenStack project for reporting this
issue. Upstream acknowledges Vishvananda Ishaya from Nebula as the original
Comment 7 errata-xmlrpc 2013-09-03 16:20:31 EDT
This issue has been addressed in following products:

  OpenStack 3 for RHEL 6

Via RHSA-2013:1199 https://rhn.redhat.com/errata/RHSA-2013-1199.html

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