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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: Red Hat OpenStack Platform 13.0 (openstack-neutron) security update
Advisory ID:       RHSA-2021:3503-01
Product:           Red Hat OpenStack Platform
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:3503
Issue date:        2021-09-13
CVE Names:         CVE-2021-40085 
=====================================================================

1. Summary:

An update for openstack-neutron is now available for Red Hat OpenStack
Platform 13 (Queens).

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 OpenStack Platform 13.0 - ELS - noarch
Red Hat OpenStack Platform 13.0 for RHEL 7.6 EUS Server - noarch

3. Description:

Neutron is a virtual network service for OpenStack. Just like OpenStack
Nova provides an API to dynamically request and configure virtual
servers, Neutron provides an API to dynamically request and configure
virtual networks. These networks connect "interfaces" from other
OpenStack services (e.g., virtual NICs from Nova VMs). The Neutron
API supports extensions to provide advanced network capabilities
(e.g., QoS, ACLs, network, monitoring, etc.).

Security Fix(es):

* arbitrary dnsmasq reconfiguration via extra_dhcp_opts (CVE-2021-40085)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page 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/):

1998052 - CVE-2021-40085 openstack-neutron: arbitrary dnsmasq reconfiguration via extra_dhcp_opts

6. Package List:

Red Hat OpenStack Platform 13.0 for RHEL 7.6 EUS Server:

Source:
openstack-neutron-12.1.1-42.1.el7ost.src.rpm

noarch:
openstack-neutron-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-common-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-linuxbridge-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-macvtap-agent-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-metering-agent-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-ml2-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-openvswitch-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-rpc-server-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-sriov-nic-agent-12.1.1-42.1.el7ost.noarch.rpm
python-neutron-12.1.1-42.1.el7ost.noarch.rpm

Red Hat OpenStack Platform 13.0 - ELS:

Source:
openstack-neutron-12.1.1-42.1.el7ost.src.rpm

noarch:
openstack-neutron-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-common-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-linuxbridge-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-macvtap-agent-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-metering-agent-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-ml2-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-openvswitch-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-rpc-server-12.1.1-42.1.el7ost.noarch.rpm
openstack-neutron-sriov-nic-agent-12.1.1-42.1.el7ost.noarch.rpm
python-neutron-12.1.1-42.1.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-2021-40085
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2021 Red Hat, Inc.
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