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

Synopsis:          Moderate: OpenShift Container Platform 4.3.25 containernetworking-plugins security update
Advisory ID:       RHSA-2020:2443-01
Product:           Red Hat OpenShift Enterprise
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:2443
Issue date:        2020-06-17
CVE Names:         CVE-2020-10749 
=====================================================================

1. Summary:

An update for containernetworking-plugins is now available for Red Hat
OpenShift Container Platform 4.3.

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 OpenShift Container Platform 4.3 - ppc64le, s390x, x86_64

3. Description:

Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or private
cloud deployments.

Security Fix(es):

* containernetworking/plugins: A vulnerability in IPv4 networking
implementations allowed malicious containers in Kubernetes clusters to
perform man-in-the-middle (MitM) attacks by redirecting traffic to the
malicious container with “rogue” IPv6 router advertisements.
(CVE-2020-10749)

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

4. Solution:

For OpenShift Container Platform 4.3 see the following documentation, which
will be updated shortly for release 4.3.25, for important instructions on
how to upgrade your cluster and fully apply this asynchronous errata
update:

https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-rel
ease-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.3/updating/updating-cluster
- -cli.html.

5. Bugs fixed (https://bugzilla.redhat.com/):

1833220 - CVE-2020-10749 containernetworking/plugins: IPv6 router advertisements allow for MitM attacks on IPv4 clusters

6. Package List:

Red Hat OpenShift Container Platform 4.3:

Source:
containernetworking-plugins-0.8.6-1.rhaos4.3.el7.src.rpm

ppc64le:
containernetworking-plugins-0.8.6-1.rhaos4.3.el7.ppc64le.rpm
containernetworking-plugins-debuginfo-0.8.6-1.rhaos4.3.el7.ppc64le.rpm

s390x:
containernetworking-plugins-0.8.6-1.rhaos4.3.el7.s390x.rpm
containernetworking-plugins-debuginfo-0.8.6-1.rhaos4.3.el7.s390x.rpm

x86_64:
containernetworking-plugins-0.8.6-1.rhaos4.3.el7.x86_64.rpm
containernetworking-plugins-debuginfo-0.8.6-1.rhaos4.3.el7.x86_64.rpm

Red Hat OpenShift Container Platform 4.3:

Source:
containernetworking-plugins-0.8.6-1.rhaos4.3.el8.src.rpm

ppc64le:
containernetworking-plugins-0.8.6-1.rhaos4.3.el8.ppc64le.rpm
containernetworking-plugins-debuginfo-0.8.6-1.rhaos4.3.el8.ppc64le.rpm
containernetworking-plugins-debugsource-0.8.6-1.rhaos4.3.el8.ppc64le.rpm

s390x:
containernetworking-plugins-0.8.6-1.rhaos4.3.el8.s390x.rpm
containernetworking-plugins-debuginfo-0.8.6-1.rhaos4.3.el8.s390x.rpm
containernetworking-plugins-debugsource-0.8.6-1.rhaos4.3.el8.s390x.rpm

x86_64:
containernetworking-plugins-0.8.6-1.rhaos4.3.el8.x86_64.rpm
containernetworking-plugins-debuginfo-0.8.6-1.rhaos4.3.el8.x86_64.rpm
containernetworking-plugins-debugsource-0.8.6-1.rhaos4.3.el8.x86_64.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-2020-10749
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 2020 Red Hat, Inc.
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