RHSA-2022:0996 - Security Advisory

Topic

An update for openstack-neutron is now available for Red Hat OpenStack
Platform 16.2 (Train).

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.

Description

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

Security Fix(es):

• Routes middleware memory leak for nonexistent controllers

(CVE-2021-40797)

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 16.2 ppc64le
• Red Hat OpenStack 16.2 x86_64

Fixes

• BZ - 1880440 - HA L3 router/keepalived stability issues (ML2/OVS)
• BZ - 1939601 - IPv6 slaac subnet creation causes FixedIpsSubnetsNotOnSameSegment error
• BZ - 1969349 - [DB] Neutron quota request implementation can end in a lock status
• BZ - 1971545 - Add support for direct ports with QoS in OVS HW offload
• BZ - 2000848 - Security group wrongly created twice
• BZ - 2001495 - L3 agent functional tests failures
• BZ - 2001870 - deadlock error in neutron log about connection to MariaDB During network stack create
• BZ - 2003248 - CVE-2021-40797 openstack-neutron: Routes middleware memory leak for nonexistent controllers
• BZ - 2013768 - Fix unit tests
• BZ - 2014025 - VM instances on compute-0 unable to contact metadata
• BZ - 2024690 - Concurrent bulk requests make neutron-server use 100% CPU on all the workers
• BZ - 2029310 - Security group log entry remains in the database after its security group is deleted
• BZ - 2031881 - "LoggingPlugin._clean_logs_by_target_id" failing in stable releases

CVEs

• CVE-2021-40797

References

• https://access.redhat.com/security/updates/classification/#moderate