RHSA-2025:4712 - Security Advisory

Topic

Red Hat OpenShift Container Platform release 4.18.13 is now available with updates to packages and images that fix several bugs and add enhancements.

This release includes a security update for Red Hat OpenShift Container Platform 4.18.

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 container images for Red Hat OpenShift Container Platform 4.18.13. See the following advisory for the RPM packages for this release:

https://access.redhat.com/errata/RHBA-2025:4714

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/ Security Fix(es):

• go-jose: Go JOSE's Parsing Vulnerable to Denial of Service

(CVE-2025-27144)

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.

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.

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 may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may 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:a93c65b0f9de1d2e29641fbeebc07178733db1cacc7bde178033d7b9183540bc

(For s390x architecture)
The image digest is sha256:5c30783384a38dfad2a76e238c00a179a96672f55b1b17019a791215e4d56ae4

(For ppc64le architecture)
The image digest is sha256:b3795cee96197d59fdde5cd5b974db7f9d5f17518233acc0f0aacc5db519b84f

(For aarch64 architecture)
The image digest is sha256:2241c79bb208d178f7f66ee37dd2faa011b7154713d2a64aafdadfb391d56cf5

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

• BZ - 2347423 - CVE-2025-27144 go-jose: Go JOSE's Parsing Vulnerable to Denial of Service
• OCPBUGS-48403 - Allow volume group snapshot feature in beta in external-snapshotter.
• OCPBUGS-50582 - [release-4.18] Graceful cleanup of IPsec states
• OCPBUGS-53427 - OCP 4.18 clusters with bare-RHEL worker nodes should not allow updates to 4.19
• OCPBUGS-54616 - e2e is failing with "[sig-arch] events should not repeat pathologically for ns/openshift-machine-api"
• OCPBUGS-54626 - v2: oc-mirror reports success exit (0) even in case of errors
• OCPBUGS-54865 - KAS: Adjust termination grace period when the audit webhook is enabled
• OCPBUGS-55005 - context-rich and case-sensitive config validation for CMO
• OCPBUGS-55121 - Consumer is losing subscription to events after restarting linuxptp-daemon pod.
• OCPBUGS-55177 - Stop reconciling catalog images from control plane for guest OLM placement
• OCPBUGS-55230 - HyperShift should allow KAS --goaway-chance flag to be configurable
• OCPBUGS-55354 - DHCP cni overflow
• OCPBUGS-55373 - Spot Machine should be Failed if during provisioning Machine becomes Deallocated on Azure
• OCPBUGS-55428 - MSBIC should not update windows machinesets
• OCPBUGS-55435 - [4.18] pod CreateContainerError: quay.io/olmqe/etcd-index@sha256:?" does not resolve to an image ID
• OCPBUGS-55449 - Adding a node with `oc adm node-image` fails for disconnected environment
• OCPBUGS-55473 - In OCL. Usbguard service fails when we install the usbguard extension
• OCPBUGS-55647 - Centos image is entirely removed and unit tests in oc are permanently failing
• OCPBUGS-55724 - etcd timeouts causing failed pod sandbox creation writing network status
• OCPBUGS-55781 - Samples Operator should only watch required ClusterOperators
• OCPBUGS-55782 - Samples Operator should only update lastTransitionTime when status has changed
• OCPBUGS-55783 - Samples Operator should sort failing image imports

CVEs

• CVE-2021-47386
• CVE-2023-52803
• CVE-2024-25739
• CVE-2024-27056
• CVE-2024-35855
• CVE-2024-42322
• CVE-2024-43871
• CVE-2024-47745
• CVE-2025-0395
• CVE-2025-21927
• CVE-2025-27144
• CVE-2025-32050
• CVE-2025-32052
• CVE-2025-32053
• CVE-2025-32906
• CVE-2025-32907
• CVE-2025-32911
• CVE-2025-32913
• CVE-2025-46420
• CVE-2025-46421

References

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