Bug 1345889 (CVE-2016-5362) - CVE-2016-5362 openstack-neutron: DHCP spoofing vulnerability
Summary: CVE-2016-5362 openstack-neutron: DHCP spoofing vulnerability
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2016-5362
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1349669 1349670 1350642 1350643 1350644 1350645 1350646 1350647
Blocks: 1345893
TreeView+ depends on / blocked
 
Reported: 2016-06-13 11:40 UTC by Andrej Nemec
Modified: 2019-09-29 13:50 UTC (History)
26 users (show)

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.
Clone Of:
Environment:
Last Closed: 2016-07-21 01:18:46 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:1473 0 normal SHIPPED_LIVE Low: openstack-neutron security and bug fix update 2016-07-21 03:53:43 UTC
Red Hat Product Errata RHSA-2016:1474 0 normal SHIPPED_LIVE Low: openstack-neutron security, bug fix, and enhancement update 2016-07-21 03:53:34 UTC

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
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