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RedHat OpenShift 4.3: RHSA-2020-2443-01 Moderate MitM Threat in Networking

red hat
Calendar Grey June 17, 2020
Dist Redhat Esm H88
Enhance your OpenShift infrastructure by implementing this essential security patch for containernetworking-tools targeting Man-in-the-Middle vulnerabilities.
An update for containernetworking-plugins is now available for Red Hat OpenShift Container Platform 4.3

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.redhat.com/en/documentation/openshift_container_platform/4.3/html/release_notes/ocp-4-3-release-notes

Details on how to access this content are available at - -cli.html.

Summary

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.

Topics%20covered

Topics Covered

security advisory Red Hat OpenShift MitM attack container networking

References

https://access.redhat.com/security/cve/CVE-2020-10749 https://access.redhat.com/security/updates/classification/#moderate

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


Read the Full Advisory


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

Topic

An update for containernetworking-plugins is now available for Red HatOpenShift Container Platform 4.3.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat OpenShift MitM attack container networking

Relevant Releases Architectures

Red Hat OpenShift Container Platform 4.3 - ppc64le, s390x, x86_64

Bugs Fixed

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

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