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AUSCERT External Security Bulletin Redistribution
ESB-2017.1960
Important: openstack-neutron security update
9 August 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: openstack-neutron
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux WS/Desktop 7
Red Hat Enterprise Linux Server 7
Impact/Access: Unauthorised Access -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2017-7543
Original Bulletin:
https://access.redhat.com/errata/RHSA-2017:2450
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Red Hat Security Advisory
Synopsis: Important: openstack-neutron security update
Advisory ID: RHSA-2017:2450-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2017:2450
Issue date: 2017-08-08
CVE Names: CVE-2017-7543
=====================================================================
1. Summary:
An update for openstack-neutron is now available for Red Hat Enterprise
Linux OpenStack Platform 7.0 (Kilo) for RHEL 7.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 - noarch
3. Description:
OpenStack Networking (neutron) is a pluggable, scalable, and API-driven
system that provisions networking services to virtual machines. Its main
function is to manage connectivity to and from virtual machines.
Security Fix(es):
* A race-condition flaw was discovered in openstack-neutron where,
following a minor overcloud update, neutron security groups were disabled.
Specifically, the following were reset to 0:
net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables.
The race was only triggered by an update, at which point an attacker could
access exposed tenant VMs and network resources. (CVE-2017-7543)
This issue was discovered by Paul Needle (Red Hat).
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
1473792 - CVE-2017-7543 openstack-neutron: iptables not active after update
6. Package List:
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7:
Source:
openstack-neutron-2015.1.4-16.1.el7ost.src.rpm
noarch:
openstack-neutron-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-bigswitch-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-brocade-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-cisco-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-common-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-embrane-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-ibm-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-linuxbridge-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-mellanox-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-metaplugin-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-metering-agent-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-midonet-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-ml2-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-nec-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-nuage-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-ofagent-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-oneconvergence-nvsd-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-opencontrail-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-openvswitch-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-ovsvapp-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-plumgrid-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-sriov-nic-agent-2015.1.4-16.1.el7ost.noarch.rpm
openstack-neutron-vmware-2015.1.4-16.1.el7ost.noarch.rpm
python-neutron-2015.1.4-16.1.el7ost.noarch.rpm
python-neutron-tests-2015.1.4-16.1.el7ost.noarch.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2017-7543
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc.
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