Bug 1110139 (CVE-2014-4167)

Summary:	CVE-2014-4167 openstack-neutron: L3-agent denial of service through IPv6 subnet
Product:	[Other] Security Response	Reporter:	Murray McAllister <mmcallis>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	abaron, agriffit, aortega, apevec, apevec, ayoung, chrisw, gkotton, gmollett, ihrachys, jlibosva, lhh, majopela, markmc, nyechiel, p, rbryant, rhos-maint, rk, sclewis, twilson, vdanen, yeylon
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-07-17 04:48:14 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1110142, 1110143, 1110201, 1110203, 1110213, 1110217, 1114782
Bug Blocks:	1090135

Description Murray McAllister 2014-06-17 06:50:02 UTC

The OpenStack project reports:

""
Title: Neutron L3-agent DoS through IPv6 subnet
Reporter: Thiago Martins (HP)
Products: Neutron
Versions: up to 2013.2.3, and 2014.1

Description:
Thiago Martins from Hewlett Packard reported a vulnerability in Neutron
L3-agent. By creating an IPv6 private subnet attached to a L3 router, an
authenticated user may break the L3-agent, preventing further floating
IPv4 addresses from being attached for the entire cloud. Note: removal
of the faulty network can not be done using the API and must be cleaned
at the database level. Only Neutron setups using IPv6 and L3-agent are
affected.
""

Upstream bug:

https://launchpad.net/bugs/1309195

Possible fixes (in the master branch):

https://review.openstack.org/#/c/88584/
https://git.openstack.org/cgit/openstack/neutron/commit/?id=d23bc8fa6e2d8a735a2aa75224b1bc96a3b992f5

CVE request:

http://www.openwall.com/lists/oss-security/2014/06/16/2

Comment 3 Murray McAllister 2014-06-17 06:52:07 UTC

Created openstack-neutron tracking bugs for this issue:

Affects: fedora-20 [bug 1110142]

Comment 6 Murray McAllister 2014-06-18 04:08:16 UTC

MITRE assigned CVE-2014-4167 to this issue:

http://www.openwall.com/lists/oss-security/2014/06/17/18

Comment 7 Fedora Update System 2014-06-26 01:59:34 UTC

openstack-neutron-2013.2.3-9.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 Garth Mollett 2014-07-01 01:42:46 UTC

Fix committed upstream for havana:

https://git.openstack.org/cgit/openstack/neutron/diff/?id=e5fed4812633b0e7cbcb4107b6dc04710e007edf&context=3&ignorews=0&ss=0

Comment 10 errata-xmlrpc 2014-07-17 04:28:29 UTC

This issue has been addressed in following products:

  OpenStack 4 for RHEL 6

Via RHSA-2014:0899 https://rhn.redhat.com/errata/RHSA-2014-0899.html