RHBA-2025:8104 - Bug Fix Advisory

Topic

Red Hat OpenShift Container Platform release 4.18.15 is now available with updates to packages and images that fix several bugs.

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 container images for Red Hat OpenShift Container Platform 4.18.15. See the following advisory for the RPM packages for this release:

https://access.redhat.com/errata/RHBA-2025:8106

Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes:

https://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/

Solution

For OpenShift Container Platform 4.18 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.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/

You can download the oc tool and use it to inspect release image metadata
for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests
can be found at
https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.

The sha values for the release are as follows:

(For x86_64 architecture)
The image digest is sha256:0ebcecebc52a63285669ed74f0e591865b702de34c0a488cbba02dfb53d71cbe

(For s390x architecture)
The image digest is sha256:9074934a9338e0d6c4c144468e2b0bb971b798d15044e0dcacc1c41db4a70bd1

(For ppc64le architecture)
The image digest is sha256:b6654f2299fd27b86ccf1f527ca19eb4274cd0bd852a779c42bcfecb1244c7eb

(For aarch64 architecture)
The image digest is sha256:cc8d94c72d40a1a05d0246eaa6f5a031a0f8b68049885a5aa4a5875e097acd42

All OpenShift Container Platform 4.18 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 CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.

Affected Products

• Red Hat OpenShift Container Platform 4.18 for RHEL 9 x86_64
• Red Hat OpenShift Container Platform 4.18 for RHEL 8 x86_64
• Red Hat OpenShift Container Platform for Power 4.18 for RHEL 9 ppc64le
• Red Hat OpenShift Container Platform for Power 4.18 for RHEL 8 ppc64le
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.18 for RHEL 9 s390x
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.18 for RHEL 8 s390x
• Red Hat OpenShift Container Platform for ARM 64 4.18 for RHEL 9 aarch64
• Red Hat OpenShift Container Platform for ARM 64 4.18 for RHEL 8 aarch64

Fixes

• OCPBUGS-44010 - Fix vsphere external ci e2e failure (upd-test)
• OCPBUGS-50690 - vSphere, if ESXi host is powered off importing the ova fails
• OCPBUGS-54304 - Intermittent authentication issues when accessing OpenShift registry
• OCPBUGS-55792 - [release-4.18] Update Authentication API to add UID and Extras claim mapping fields for external OIDC
• OCPBUGS-56030 - OpenShift Audit log showing sensitive data of machine config
• OCPBUGS-56170 - error from generateAndValidateRenderedMachineConfig function can be misleading
• OCPBUGS-56192 - 4.18: CSI certification fails for RWX volumes
• OCPBUGS-56255 - [release-4.18] The web console still shows message about must resume updates for worker nodes within 60 days in 4.16 and later

CVEs

• CVE-2025-21756

References

(none)