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Date: Fri, 10 Jun 2016 12:43:27 -0400 (EDT)
From: cve-assign@...re.org
To: tdecacqu@...hat.com
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com
Subject: Re: CVE request for vulnerability in OpenStack Neutron

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> Title: Neutron IPTables firewall anti-spoof protection bypass

> independently reported vulnerabilities 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.

> The dhcp fix has been included in the 8.0.0 release and this
> request probably needs more than one CVE.

>> https://bugs.launchpad.net/neutron/+bug/1502933/comments/21

>> Just to be clear, the ICMPv6 source address spoof isn't addressed by
>> bug 1558658 patch (I39dc0e23fc118ede19ef2d986b29fc5a8e48ff78).

>> Since both issues abuse the same fundamental flaw, it seems like a
>> good opportunity to bundle both fix in a single advisory.

>> However, because we need different patch, this will likely requires 2
>> different CVE numbers...

> https://bugs.launchpad.net/bugs/1558658 (DHCP spoofing because the rule had only
>                                          -p udp -m udp --sport 68 --dport 67)

Use CVE-2016-5362.


> https://bugs.launchpad.net/bugs/1558658 (MAC source address spoofing)

Use CVE-2016-5363.


> https://bugs.launchpad.net/bugs/1502933 (ICMPv6 source address spoofing)

Use CVE-2015-8914.

- -- 
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
[ A PGP key is available for encrypted communications at
  http://cve.mitre.org/cve/request_id.html ]
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