RHSA-2025:8556 - Security Advisory

Topic

Red Hat OpenShift Container Platform release 4.16.42 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 4.16.

Red Hat Product Security has rated this update as having a security impact of Important. 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 4.16.42. See the following advisory for the RPM packages for this release:

https://access.redhat.com/errata/RHBA-2025:8557

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/4.16/html/release_notes/

Security Fix(es):

• golang.org/x/net/html: Non-linear parsing of case-insensitive content in golang.org/x/net/html (CVE-2024-45338)
• golang.org/x/oauth2/jws: Unexpected memory consumption during token parsing in golang.org/x/oauth2/jws (CVE-2025-22868)
• golang-jwt/jwt: jwt-go allows excessive memory allocation during header parsing (CVE-2025-30204)
• openshift-console: OpenShift Console: Server-Side Request Forgery (CVE-2024-6538)

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 4.16 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/4.16/html-single/updating_clusters/index#updating-cluster-cli.

Solution

For OpenShift Container Platform 4.16 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/4.16/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 sha256:2fa965ede9ab6530be8a2e780b484d487c2b3ea4354e84cec680c22823c255ab

(For s390x architecture)
The image digest is sha256:8e59e0fe81ef2928aeae8f2ec07fa7953d50c32bc73ddd8596b784027f2aa2e1

(For ppc64le architecture)
The image digest is sha256:c8cfaa3eace6cf14df1cbcc0f9233db687b604416828f561b899a7b653c60a77

(For aarch64 architecture)
The image digest is sha256:53e34991043e4f76b4c4f6b604205a1c37918367e674c8350567da5794bc4619

All OpenShift Container Platform 4.16 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/4.16/html-single/updating_clusters/index#updating-cluster-cli.

Affected Products

• Red Hat OpenShift Container Platform 4.16 for RHEL 9 x86_64
• Red Hat OpenShift Container Platform for Power 4.16 for RHEL 9 ppc64le
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.16 for RHEL 9 s390x
• Red Hat OpenShift Container Platform for ARM 64 4.16 for RHEL 9 aarch64

Fixes

• BZ - 2296057 - CVE-2024-6538 openshift-console: OpenShift Console: Server-Side Request Forgery
• BZ - 2333122 - CVE-2024-45338 golang.org/x/net/html: Non-linear parsing of case-insensitive content in golang.org/x/net/html
• BZ - 2348366 - CVE-2025-22868 golang.org/x/oauth2/jws: Unexpected memory consumption during token parsing in golang.org/x/oauth2/jws
• BZ - 2354195 - CVE-2025-30204 golang-jwt/jwt: jwt-go allows excessive memory allocation during header parsing
• OCPBUGS-52503 - [4.16] [OVN+CNV] Cached route with incorrect MTU causes huge instability in the cluster
• OCPBUGS-53151 - traffic cut after mac binding flows are removed
• OCPBUGS-54665 - [4.16] The default value of 'pull-progress-timeout' is too small
• OCPBUGS-56092 - Spot Machine should be Failed if during provisioning Machine becomes Deallocated on Azure
• OCPBUGS-56152 - Provide error report from ingress-to-route controller
• OCPBUGS-56195 - CNI Live Migration gets stuck when spec.migration.features are in place
• OCPBUGS-56354 - Empty proxy variables are causing issues during the build
• OCPBUGS-56358 - olm-operator pod going to CLBO with a message "detected that every object is labelled, exiting to re-start the process"
• OCPBUGS-56626 - error from generateAndValidateRenderedMachineConfig function can be misleading
• OCPBUGS-56656 - OCP on Azure MachineSet scaling up fails after upgrade to 4.15.48+ on non zonal region
• OCPBUGS-56715 - Deployment created via OCP console fails to trigger on Imagestream change
• OCPBUGS-56858 - [release-4.16] The web console still shows message about must resume updates for worker nodes within 60 days in 4.16 and later
• OCPBUGS-56868 - MCP is reported degraded in the upgrade from OCP 4.15.44 to 4.16.39 with error "Marking Degraded due to: "unexpected on-disk state validating against rendered-worker-XXXXX: content mismatch for file \"/etc/systemd/system/kubelet-dependencies.target\""

CVEs

• CVE-2021-47495
• CVE-2023-52606
• CVE-2023-52622
• CVE-2023-52703
• CVE-2023-52840
• CVE-2024-6538
• CVE-2024-12133
• CVE-2024-12243
• CVE-2024-26645
• CVE-2024-26901
• CVE-2024-26907
• CVE-2024-26921
• CVE-2024-26973
• CVE-2024-27013
• CVE-2024-27042
• CVE-2024-35930
• CVE-2024-35946
• CVE-2024-36933
• CVE-2024-45338
• CVE-2024-57876
• CVE-2025-0395
• CVE-2025-2784
• CVE-2025-4948
• CVE-2025-21756
• CVE-2025-22868
• CVE-2025-30204
• CVE-2025-31205
• CVE-2025-31257
• CVE-2025-32049
• CVE-2025-32914
• CVE-2025-37749

References

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