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Red Hat Product Errata RHSA-2021:3481 - Security Advisory
Issued:
2021-09-09
Updated:
2021-09-09

RHSA-2021:3481 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: Red Hat OpenStack Platform 16.1 (openstack-neutron) security update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for openstack-neutron is now available for Red Hat OpenStack
Platform 16.1 (Train).

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.

Description

Neutron is a virtual network service for Openstack, and a part of Netstack.
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.

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

Affected Products

  • Red Hat OpenStack for IBM Power 16.1 ppc64le
  • Red Hat OpenStack 16.1 x86_64

Fixes

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

CVEs

  • CVE-2021-40085

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat OpenStack for IBM Power 16.1

SRPM
openstack-neutron-15.2.1-1.20210409073447.el8ost.src.rpm SHA-256: 8a1788835fea2fb6b1bde2e3a68d869bfc0ffe987c29cbdc7c7711f76d9d9192
ppc64le
openstack-neutron-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: adf159edfdfc25e69eaf2363ef3a748221bc6c4d10e91762fce39ff0219a35f2
openstack-neutron-common-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: b47d753823c11c0647fee606966c3cdaa9a25c170e7aa813bdbf5b510aab35ef
openstack-neutron-linuxbridge-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: 6b0471bcb9ab9a33bec55d6a48215dee696f29d3490b0d2b076ae992aef30d82
openstack-neutron-macvtap-agent-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: 5ff4ce3c11e8cdd0aa44f39b494410652e409c29e68324c6ad577fe686b198bd
openstack-neutron-metering-agent-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: 57222d2abf7dd0f6a20eff21e5dc8f933ee121b593b8a474a7c5cdaa46b8cb56
openstack-neutron-ml2-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: acf0a4c4c8006013f7a882a9ef4d3b53f75699962582c4cfc9a5a8b7bb5e09ed
openstack-neutron-openvswitch-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: c0dfa2b02ee2b21ff38f9b0308eb2cb564c97e09f6869f1293ac1c26d07a4b4a
openstack-neutron-rpc-server-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: 877a86f010f7c69965f42b7d9908739b03c21e09730ccde8fde861bbd66a6f68
openstack-neutron-sriov-nic-agent-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: 2dadeb46b142ff27d4f4b32f939a66c4613b83a87b7ef08b64bd84bf1c01a6cb
python3-neutron-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: 8d8749563d4038c40c95f18ae639e5bdd4d68ab9a91a6ab45700372122bb136f

Red Hat OpenStack 16.1

SRPM
openstack-neutron-15.2.1-1.20210409073447.el8ost.src.rpm SHA-256: 8a1788835fea2fb6b1bde2e3a68d869bfc0ffe987c29cbdc7c7711f76d9d9192
x86_64
openstack-neutron-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: adf159edfdfc25e69eaf2363ef3a748221bc6c4d10e91762fce39ff0219a35f2
openstack-neutron-common-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: b47d753823c11c0647fee606966c3cdaa9a25c170e7aa813bdbf5b510aab35ef
openstack-neutron-linuxbridge-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: 6b0471bcb9ab9a33bec55d6a48215dee696f29d3490b0d2b076ae992aef30d82
openstack-neutron-macvtap-agent-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: 5ff4ce3c11e8cdd0aa44f39b494410652e409c29e68324c6ad577fe686b198bd
openstack-neutron-metering-agent-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: 57222d2abf7dd0f6a20eff21e5dc8f933ee121b593b8a474a7c5cdaa46b8cb56
openstack-neutron-ml2-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: acf0a4c4c8006013f7a882a9ef4d3b53f75699962582c4cfc9a5a8b7bb5e09ed
openstack-neutron-openvswitch-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: c0dfa2b02ee2b21ff38f9b0308eb2cb564c97e09f6869f1293ac1c26d07a4b4a
openstack-neutron-rpc-server-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: 877a86f010f7c69965f42b7d9908739b03c21e09730ccde8fde861bbd66a6f68
openstack-neutron-sriov-nic-agent-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: 2dadeb46b142ff27d4f4b32f939a66c4613b83a87b7ef08b64bd84bf1c01a6cb
python3-neutron-15.2.1-1.20210409073447.el8ost.noarch.rpm SHA-256: 8d8749563d4038c40c95f18ae639e5bdd4d68ab9a91a6ab45700372122bb136f

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

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