RHSA-2025:4427 - Security Advisory

Topic

Red Hat OpenShift Container Platform release 4.18.12 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 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 4.18.12. See the following advisory for the RPM packages for this release:

https://access.redhat.com/errata/RHBA-2025:4429

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):

• libxslt: Use-After-Free in libxslt (xsltGetInheritedNsList)

(CVE-2024-55549)

• libxslt: Use-After-Free in libxslt numbers.c (CVE-2025-24855)
• openshift-console: Unauthenticated Data Exposure (CVE-2024-7128)
• 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 sha256:31e8978d1f7a24c3e70dcc12c93dd5e73311b78e528f73beb020ddbe3270e07d

(For s390x architecture)
The image digest is sha256:7e6a77a66b2f93afb2108ada0617d26dceadb130b58a5d3070142a7f6aca4ade

(For ppc64le architecture)
The image digest is sha256:af37b07cf408da430bab837ba8a0083934fa99df14efd7855240b77d9e102f0e

(For aarch64 architecture)
The image digest is sha256:e5d7b0851e8cd4378bc810b2fd1f19489836ea186a6678eed1add4bed4f08b13

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 - 2300037 - CVE-2024-7128 openshift-console: Unauthenticated Data Exposure
• BZ - 2347423 - CVE-2025-27144 go-jose: Go JOSE's Parsing Vulnerable to Denial of Service
• BZ - 2352483 - CVE-2025-24855 libxslt: Use-After-Free in libxslt numbers.c
• BZ - 2352484 - CVE-2024-55549 libxslt: Use-After-Free in libxslt (xsltGetInheritedNsList)
• OCPBUGS-54737 - Bump socks5-proxy, konnectivity-proxy, http-proxy, client-token-minter memory requests
• OCPBUGS-54946 - Add validation to check that NamedCertificates and the Internal Certificate SAN does not have conflicting domains
• OCPBUGS-55148 - Misaligned OpenShift apiserver probe endpoints
• OCPBUGS-55195 - [release-4.18] Operator is visible twice in management console
• OCPBUGS-55270 - Pod controller failed to run - Whereabouts
• OCPBUGS-55290 - MCO should fall back to us-east-1 for AWS bootimages if no region specific-AMI exists
• OCPBUGS-55293 - Fix PollUntilContextTimeout in syncRenderConfig
• OCPBUGS-55343 - BGP+BFD not working properly
• OCPBUGS-55346 - pod deletion doesn't occur fast enough resulting in new pod multus interface failing ipv6 duplicate address detection
• OCPBUGS-55364 - Race condition when handling hostname in ironic-agent

CVEs

• CVE-2021-47386
• CVE-2023-52528
• CVE-2023-52803
• CVE-2023-52878
• CVE-2024-7128
• CVE-2024-25739
• CVE-2024-26743
• CVE-2024-27056
• CVE-2024-35853
• CVE-2024-35855
• CVE-2024-35939
• CVE-2024-35944
• CVE-2024-36004
• CVE-2024-38581
• CVE-2024-42070
• CVE-2024-42114
• CVE-2024-42301
• CVE-2024-42322
• CVE-2024-43871
• CVE-2024-47745
• CVE-2024-55549
• CVE-2025-0395
• CVE-2025-21927
• CVE-2025-24855
• CVE-2025-27144

References

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