Red Hat Security Advisory: OpenShift Container Platform 4.20.12 bug fix and security update
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 4.20.12. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2026:0977 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/4.20/html/release_notes/ Security Fix(es): * libssh: Invalid return code for chacha20 poly1305 with OpenSSL backend (CVE-2025-5987) * libxslt: libxml2: Inifinite recursion at exsltDynMapFunction function in libexslt/dynamic.c (CVE-2025-9714) * binutils: GNU Binutils Linker heap-based overflow (CVE-2025-11083) 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 4.20 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/4.20/html-single/updating_clusters/index#updating-cluster-cli.
AI Analysis
Technical Summary
This advisory covers Red Hat OpenShift Container Platform 4.14.61, which contains fixes for six security vulnerabilities: CVE-2025-8677 (bind resource exhaustion via malformed DNSKEY handling), CVE-2025-40778 (bind cache poisoning via unsolicited resource records), CVE-2025-40780 (bind cache poisoning due to weak PRNG), CVE-2025-59375 (libexpat allows large dynamic memory allocations from small documents), CVE-2025-5987 (libssh invalid return code for chacha20 poly1305 with OpenSSL backend), and CVE-2025-9714 (libxslt/libxml2 infinite recursion in exsltDynMapFunction). These vulnerabilities affect various architectures and are addressed by updated container images and RPM packages. The advisory directs users to upgrade their clusters using official OpenShift tools and documentation.
Potential Impact
The vulnerabilities fixed in this release could lead to resource exhaustion, cache poisoning attacks, improper cryptographic handling, excessive memory allocation, and infinite recursion, potentially impacting the stability and security of OpenShift Container Platform deployments. The advisory rates the security impact as Important (high severity). There are no known exploits in the wild at the time of this advisory.
Mitigation Recommendations
Red Hat has released updated container images and RPM packages for OpenShift Container Platform 4.14.61 that address these vulnerabilities. Users should upgrade to these updated packages and images as soon as they are available in their release channels. Upgrades can be performed using the OpenShift CLI (oc) or the web console following the official Red Hat documentation. Patch status is confirmed with an official fix available. No additional mitigation steps are indicated beyond applying the update.
Red Hat Security Advisory: OpenShift Container Platform 4.20.12 bug fix and security update
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 4.20.12. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2026:0977 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/4.20/html/release_notes/ Security Fix(es): * libssh: Invalid return code for chacha20 poly1305 with OpenSSL backend (CVE-2025-5987) * libxslt: libxml2: Inifinite recursion at exsltDynMapFunction function in libexslt/dynamic.c (CVE-2025-9714) * binutils: GNU Binutils Linker heap-based overflow (CVE-2025-11083) 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 4.20 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/4.20/html-single/updating_clusters/index#updating-cluster-cli.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers Red Hat OpenShift Container Platform 4.14.61, which contains fixes for six security vulnerabilities: CVE-2025-8677 (bind resource exhaustion via malformed DNSKEY handling), CVE-2025-40778 (bind cache poisoning via unsolicited resource records), CVE-2025-40780 (bind cache poisoning due to weak PRNG), CVE-2025-59375 (libexpat allows large dynamic memory allocations from small documents), CVE-2025-5987 (libssh invalid return code for chacha20 poly1305 with OpenSSL backend), and CVE-2025-9714 (libxslt/libxml2 infinite recursion in exsltDynMapFunction). These vulnerabilities affect various architectures and are addressed by updated container images and RPM packages. The advisory directs users to upgrade their clusters using official OpenShift tools and documentation.
Potential Impact
The vulnerabilities fixed in this release could lead to resource exhaustion, cache poisoning attacks, improper cryptographic handling, excessive memory allocation, and infinite recursion, potentially impacting the stability and security of OpenShift Container Platform deployments. The advisory rates the security impact as Important (high severity). There are no known exploits in the wild at the time of this advisory.
Mitigation Recommendations
Red Hat has released updated container images and RPM packages for OpenShift Container Platform 4.14.61 that address these vulnerabilities. Users should upgrade to these updated packages and images as soon as they are available in their release channels. Upgrades can be performed using the OpenShift CLI (oc) or the web console following the official Red Hat documentation. Patch status is confirmed with an official fix available. No additional mitigation steps are indicated beyond applying the update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:0996
- Cve Count
- 6
- Additional Cves
- ["CVE-2025-8677","CVE-2025-9714","CVE-2025-40778","CVE-2025-40780","CVE-2025-59375"]
- Cvss Version
- null
Threat ID: 6a175eefe29bf47b50eddcdc
Added to database: 5/27/2026, 9:15:27 PM
Last enriched: 5/27/2026, 9:26:25 PM
Last updated: 5/29/2026, 3:30:32 PM
Views: 13
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