Issued:: 2021-08-11
Updated:: 2021-08-11

RHSA-2021:2977 - Moderate: OpenShift Container Platform 4.7.23 security update

Synopsis

Moderate: OpenShift Container Platform 4.7.23 security update

Type/Severity

Security Advisory Moderate

Topic

Red Hat OpenShift Container Platform release 4.7.23 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.

Security Fix(es):

gogo/protobuf: plugin/unmarshal/unmarshal.go lacks certain index validation (CVE-2021-3121)

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.

You may download the oc tool and use it to inspect release image metadata as follows:

(For x86_64 architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.7.23-x86_64

The image digest is sha256:fb00f5e16a2092c3f15113ad8de0d2e841abdb43c9c39794522fc79784a3efb0

(For s390x architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.7.23-s390x

The image digest is sha256:5e633adb1d47cd2c0a000caa02d937074cab4e3b601b99d71368604c3109c632

(For ppc64le architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.7.23-ppc64le

The image digest is sha256:7adfc7d4513763ac62700f3d5eb7fd9050b925de8e9ccc5b2bb6dee593522c5a

All OpenShift Container Platform 4.7 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 This page is not included, but the link has been rewritten to point to the nearest parent document.https://docs.openshift.com/container-platform/4.7/updating/updating-cluster -between-minor.html#understanding-upgrade-channels_updating-cluster-between -minor

Solution

For OpenShift Container Platform 4.7 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/4.7/release_notes/ocp-4-7-release-notes.html

Details on how to access this content are available at https://docs.openshift.com/container-platform/4.7/updating/updating-cluster-cli.html

Affected Products

Product	Version	Arch
Red Hat OpenShift Container Platform	4.7	x86_64
Red Hat OpenShift Container Platform for Power	4.7	ppc64le
Red Hat OpenShift Container Platform for IBM Z and LinuxONE	4.7	s390x

Fixes

CVEs

CVE-2021-3121

References

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

Additional information

The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.