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Red Hat Security Advisory 2020-2592-01

Red Hat Security Advisory 2020-2592-01
Posted Jul 2, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-2592-01 - The Container Network Interface project consists of a specification and libraries for writing plug-ins for configuring network interfaces in Linux containers, along with a number of supported plug-ins. CNI concerns itself only with network connectivity of containers and removing allocated resources when the container is deleted. Issues addressed include a man-in-the-middle vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-10749
MD5 | 0742a2b9dcdee8cf2afcde085dad53ec

Red Hat Security Advisory 2020-2592-01

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

Synopsis: Moderate: OpenShift Container Platform 4.2.36 containernetworking-plugins security update
Advisory ID: RHSA-2020:2592-01
Product: Red Hat OpenShift Enterprise
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2592
Issue date: 2020-07-01
CVE Names: CVE-2020-10749
====================================================================
1. Summary:

An update for containernetworking-plugins is now available for Red Hat
OpenShift Container Platform 4.2.

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 4.2 - s390x, x86_64

3. Description:

The Container Network Interface (CNI) project consists of a specification
and libraries for writing plug-ins for configuring network interfaces in
Linux containers, along with a number of supported plug-ins. CNI concerns
itself only with network connectivity of containers and removing allocated
resources when the container is deleted.

Security Fix(es):

* containernetworking/plugins: IPv6 router advertisements allowed for MitM
attacks on IPv4 clusters (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 4.2 see the following documentation, which
will be updated shortly for release 4.2.36, for important instructions on
how to upgrade your cluster and fully apply this asynchronous errata
update:

https://docs.openshift.com/container-platform/4.2/release_notes/ocp-4-2-rel
ease-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.2/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 4.2:

Source:
containernetworking-plugins-0.8.6-1.rhaos4.2.el7.src.rpm

s390x:
containernetworking-plugins-0.8.6-1.rhaos4.2.el7.s390x.rpm
containernetworking-plugins-debuginfo-0.8.6-1.rhaos4.2.el7.s390x.rpm

x86_64:
containernetworking-plugins-0.8.6-1.rhaos4.2.el7.x86_64.rpm
containernetworking-plugins-debuginfo-0.8.6-1.rhaos4.2.el7.x86_64.rpm

Red Hat OpenShift Container Platform 4.2:

Source:
containernetworking-plugins-0.8.6-1.rhaos4.2.el8.src.rpm

s390x:
containernetworking-plugins-0.8.6-1.rhaos4.2.el8.s390x.rpm
containernetworking-plugins-debuginfo-0.8.6-1.rhaos4.2.el8.s390x.rpm
containernetworking-plugins-debugsource-0.8.6-1.rhaos4.2.el8.s390x.rpm

x86_64:
containernetworking-plugins-0.8.6-1.rhaos4.2.el8.x86_64.rpm
containernetworking-plugins-debuginfo-0.8.6-1.rhaos4.2.el8.x86_64.rpm
containernetworking-plugins-debugsource-0.8.6-1.rhaos4.2.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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