Bug 1345889 (CVE-2016-5362)

Summary:	CVE-2016-5362 openstack-neutron: DHCP spoofing vulnerability
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	aathomas, abaron, amuller, aortega, apevec, apevec, ayoung, chrisw, cvsbot-xmlrpc, gmollett, ihrachys, jlibosva, jschluet, kbasil, lhh, lpeer, majopela, markmc, nyechiel, rbryant, rk, sclewis, srevivo, tdecacqu, tsuter, twilson
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	Neutron functionality includes internal firewall management between networks. Due to the relaxed nature of particular rules, it is possible for machines on the same layer 2 networks to forge non-IP traffic, such as ARP and DHCP requests.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-07-21 01:18:46 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:	1349669, 1349670, 1350642, 1350643, 1350644, 1350645, 1350646, 1350647
Bug Blocks:	1345893

Description Andrej Nemec 2016-06-13 11:40:17 UTC

A vulnerability in Neutron anti-spoof protection. By forging DHCP discovery messages or non-IP traffic, such as ARP or ICMPv6, an instance may spoof IP or MAC source addresses on attached networks resulting in denial of services and/or traffic interception. Moreover when L2population isn't used, other tenants attached to a shared network are also vulnerable. Neutron setups using the IPTables firewall driver are affected.

Upstream bug:

https://bugs.launchpad.net/bugs/1558658

References:

http://seclists.org/oss-sec/2016/q2/519

Comment 1 Garth Mollett 2016-06-23 23:49:05 UTC

Created openstack-neutron tracking bugs for this issue:

Affects: fedora-all [bug 1349669]
Affects: openstack-rdo [bug 1349670]

Comment 12 errata-xmlrpc 2016-07-20 23:54:02 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7

Via RHSA-2016:1474 https://access.redhat.com/errata/RHSA-2016:1474

Comment 13 errata-xmlrpc 2016-07-20 23:55:28 UTC

This issue has been addressed in the following products:

  Red Hat OpenStack Platform 8.0 (Liberty)

Via RHSA-2016:1473 https://access.redhat.com/errata/RHSA-2016:1473