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Red Hat OpenStack Platform 10.0 RHSA-2021:3502-01 Important Dnsmasq Issue

red hat
Calendar Grey September 13, 2021
Dist Redhat Esm H88
A significant patch has been released for Red Hat OpenShift Platform 4.5 tackling a severe vulnerability in the storage subsystem.
An update for openstack-neutron is now available for Red Hat OpenStack Platform 10 (Newton)

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

Summary

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.

Topics%20covered

Topics Covered

security advisory network issue dnsmasq Red Hat OpenStack Important

References

https://access.redhat.com/security/cve/CVE-2021-40085 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat OpenStack Platform 10.0:
Source: openstack-neutron-9.4.1-56.el7ost.src.rpm
noarch: openstack-neutron-9.4.1-56.el7ost.noarch.rpm openstack-neutron-common-9.4.1-56.el7ost.noarch.rpm openstack-neutron-linuxbridge-9.4.1-56.el7ost.noarch.rpm openstack-neutron-macvtap-agent-9.4.1-56.el7ost.noarch.rpm openstack-neutron-metering-agent-9.4.1-56.el7ost.noarch.rpm openstack-neutron-ml2-9.4.1-56.el7ost.noarch.rpm openstack-neutron-openvswitch-9.4.1-56.el7ost.noarch.rpm openstack-neutron-rpc-server-9.4.1-56.el7ost.noarch.rpm openstack-neutron-sriov-nic-agent-9.4.1-56.el7ost.noarch.rpm python-neutron-9.4.1-56.el7ost.noarch.rpm python-neutron-tests-9.4.1-56.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/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:3502-01
Product: Red Hat OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3502
Issue date: 2021-09-13

Topic

An update for openstack-neutron is now available for Red Hat OpenStackPlatform 10 (Newton).Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory network issue dnsmasq Red Hat OpenStack Important

Relevant Releases Architectures

Red Hat OpenStack Platform 10.0 - noarch

Bugs Fixed

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

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