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Red Hat Security Advisory

Synopsis: Moderate: openstack-neutron security update
Advisory ID: RHSA-2018:2710-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2710
Issue date: 2018-09-17
CVE Names: CVE-2018-14635
=====================================================================

1. Summary:

An update for openstack-neutron is now available for Red Hat OpenStack
Platform 13.0 (Queens).

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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 OpenStack Platform 13.0 – 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):

* openstack-neutron: A router interface out of subnet IP range results in a
denial of service (CVE-2018-14635)

For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.

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/):

1607822 – CVE-2018-14635 openstack-neutron: A router interface out of subnet IP range results in a denial of service

6. Package List:

Red Hat OpenStack Platform 13.0:

Source:
openstack-neutron-12.0.3-5.el7ost.src.rpm

noarch:
openstack-neutron-12.0.3-5.el7ost.noarch.rpm
openstack-neutron-common-12.0.3-5.el7ost.noarch.rpm
openstack-neutron-linuxbridge-12.0.3-5.el7ost.noarch.rpm
openstack-neutron-macvtap-agent-12.0.3-5.el7ost.noarch.rpm
openstack-neutron-metering-agent-12.0.3-5.el7ost.noarch.rpm
openstack-neutron-ml2-12.0.3-5.el7ost.noarch.rpm
openstack-neutron-openvswitch-12.0.3-5.el7ost.noarch.rpm
openstack-neutron-rpc-server-12.0.3-5.el7ost.noarch.rpm
openstack-neutron-sriov-nic-agent-12.0.3-5.el7ost.noarch.rpm
python-neutron-12.0.3-5.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-2018-14635
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2018 Red Hat, Inc.
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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: openstack-neutron security and bug fix update
Advisory ID: RHSA-2018:2715-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2715
Issue date: 2018-09-17
CVE Names: CVE-2018-14635
=====================================================================

1. Summary:

An update for openstack-neutron is now available for Red Hat OpenStack
Platform 10.0 (Newton).

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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 OpenStack Platform 10.0 – 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):

* openstack-neutron: A router interface out of subnet IP range results in a
denial of service (CVE-2018-14635)

For more details about the security issue, including the impact, a CVSS
score, and other related information, refer to the CVE page listed in the
References section.

Bug Fix(es):

* A new configuration option bridge_mac_table_size has been added for the
neutron OVS agent. This value is set on every Open vSwitch bridge managed
by the openvswitch-neutron-agent. The value controls the maximum number of
MAC addresses that can be learned on a bridge. The default value for this
new option is 50,000, which should be enough for most systems. Values
outside a reasonable range (10 to 1,000,000) might be overridden by Open
vSwitch. (BZ#1589031)

* Previously, when a VM was destroyed, the IPv6 lease was not removed from
dnsmasq lease files due to a missing dhcp_release6 binary.

With this update, the dhcp_release6 binary is now provided in an updated
dnsmasq-utils package version. (BZ#1545006)

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/):

1404709 – Neutron L3 Agent: AZLeastRoutersScheduler scheduler bug
1511394 – FlushError on IPAllocations when multiple subnets in the same network deleted
1532280 – ovs-vswitchd service hangs with Error too many open files
1545006 – openstack-neutron DHCP agent requires dnsmasq-utils 2.76
1561907 – test_sriov is failing on OSP10
1570908 – Cannot set –no-share on shared network that has floating_ip, gateway AND a tenant port
1575356 – [CI] Issue with addCleanup method causing scenario tests to fail
1576256 – neutron-openvswitch-agent cleans up stale flows months after they were created but it does not recreated correct flows and bridge configuration
1578414 – Sometimes dhcp_release packet isn’t reaching dnsmasq process because it’s being reloaded
1579400 – Neutron agents attach untagged ports to br-int, which will be trunk port if neutron-openvswitch-agent never handles them
1584845 – Packet loss during standby L3 agent restart
1589031 – The mac table size of neutron bridges (br-tun, br-int, br-*) is too small by default and eventually makes openvswitch explode
1607822 – CVE-2018-14635 openstack-neutron: A router interface out of subnet IP range results in a denial of service

6. Package List:

Red Hat OpenStack Platform 10.0:

Source:
openstack-neutron-9.4.1-28.el7ost.src.rpm

noarch:
openstack-neutron-9.4.1-28.el7ost.noarch.rpm
openstack-neutron-common-9.4.1-28.el7ost.noarch.rpm
openstack-neutron-linuxbridge-9.4.1-28.el7ost.noarch.rpm
openstack-neutron-macvtap-agent-9.4.1-28.el7ost.noarch.rpm
openstack-neutron-metering-agent-9.4.1-28.el7ost.noarch.rpm
openstack-neutron-ml2-9.4.1-28.el7ost.noarch.rpm
openstack-neutron-openvswitch-9.4.1-28.el7ost.noarch.rpm
openstack-neutron-rpc-server-9.4.1-28.el7ost.noarch.rpm
openstack-neutron-sriov-nic-agent-9.4.1-28.el7ost.noarch.rpm
python-neutron-9.4.1-28.el7ost.noarch.rpm
python-neutron-tests-9.4.1-28.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-2018-14635
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2018 Red Hat, Inc.
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