RHSA-2021:5002 - Security Advisory

Topic

Red Hat OpenShift Container Platform release 4.9.11 is now available with
updates to packages and images that fix several bugs and add enhancements.

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

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

This advisory contains the RPM packages for Red Hat OpenShift Container
Platform 4.9.11. See the following advisory for the container images for
this release:

https://access.redhat.com/errata/RHBA-2021:5003

All OpenShift Container Platform 4.9 users are advised to upgrade to these
updated packages and images when they are available in the appropriate
release channel. To check for available updates, use the OpenShift Console
or the CLI oc command. Instructions for upgrading a cluster are available
at
https://docs.openshift.com/container-platform/4.9/updating/updating-cluster-between-minor.html#understanding-upgrade-channels_updating-cluster-between-minor

Security Fix(es):

• haproxy: Incomplete fix for CVE-2021-39242 in OpenShift 4.9

(CVE-2021-4047)

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.

Solution

For OpenShift Container Platform 4.9 see the following documentation, which
will be updated shortly for this release, for important instructions on how
to upgrade your cluster and fully apply this asynchronous errata update:

https://docs.openshift.com/container-platform/4.9/release_notes/ocp-4-9-release-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.9/updating/updating-cluster-cli.html

Affected Products

• Red Hat OpenShift Container Platform 4.9 for RHEL 8 x86_64
• Red Hat OpenShift Container Platform for Power 4.9 for RHEL 8 ppc64le
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.9 for RHEL 8 s390x
• Red Hat OpenShift Container Platform for ARM 64 4.9 aarch64

Fixes

• BZ - 2027881 - CVE-2021-4047 haproxy: Incomplete fix for CVE-2021-39242 in OpenShift 4.9

CVEs

• CVE-2021-4047

References

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