Red Hat Security Advisory: OpenShift Container Platform 4.12.77 bug fix and security update
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 4.12.77. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2025:8304 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/4.12/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) 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 4.12 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/4.12/html-single/updating_clusters/index#updating-cluster-within-minor.
AI Analysis
Technical Summary
This advisory addresses two use-after-free vulnerabilities in the libxslt library used within Red Hat OpenShift Container Platform. The first vulnerability (CVE-2024-55549) occurs in the xsltGetInheritedNsList function, and the second (CVE-2025-24855) occurs in numbers.c. Both issues could lead to memory corruption. The vulnerabilities affect OpenShift Container Platform versions prior to 4.16.40 and 4.17.28. Red Hat has released updated container images and RPM packages to fix these issues. The advisories include instructions for upgrading clusters using the OpenShift CLI or web console. The security impact is rated as important by Red Hat Product Security, and the overall severity is high.
Potential Impact
The use-after-free vulnerabilities in libxslt could potentially lead to memory corruption, which may be exploitable to cause denial of service or other unintended behavior within the OpenShift Container Platform environment. The exact impact details and CVSS scores are available on the referenced CVE pages. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
A fix is available. Users of OpenShift Container Platform 4.16 should upgrade to version 4.16.40 or later, and users of version 4.17 should upgrade to 4.17.28 or later. Updated container images and RPM packages have been released by Red Hat. Users should apply these updates via the OpenShift CLI (oc) or the web console following the official upgrade instructions provided by Red Hat. No additional mitigations are specified by the vendor.
Red Hat Security Advisory: OpenShift Container Platform 4.12.77 bug fix and security update
Description
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 4.12.77. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2025:8304 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/4.12/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) 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 4.12 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/4.12/html-single/updating_clusters/index#updating-cluster-within-minor.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory addresses two use-after-free vulnerabilities in the libxslt library used within Red Hat OpenShift Container Platform. The first vulnerability (CVE-2024-55549) occurs in the xsltGetInheritedNsList function, and the second (CVE-2025-24855) occurs in numbers.c. Both issues could lead to memory corruption. The vulnerabilities affect OpenShift Container Platform versions prior to 4.16.40 and 4.17.28. Red Hat has released updated container images and RPM packages to fix these issues. The advisories include instructions for upgrading clusters using the OpenShift CLI or web console. The security impact is rated as important by Red Hat Product Security, and the overall severity is high.
Potential Impact
The use-after-free vulnerabilities in libxslt could potentially lead to memory corruption, which may be exploitable to cause denial of service or other unintended behavior within the OpenShift Container Platform environment. The exact impact details and CVSS scores are available on the referenced CVE pages. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
A fix is available. Users of OpenShift Container Platform 4.16 should upgrade to version 4.16.40 or later, and users of version 4.17 should upgrade to 4.17.28 or later. Updated container images and RPM packages have been released by Red Hat. Users should apply these updates via the OpenShift CLI (oc) or the web console following the official upgrade instructions provided by Red Hat. No additional mitigations are specified by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:4731
- Cve Count
- 3
- Additional Cves
- ["CVE-2025-22869","CVE-2025-24855"]
Threat ID: 6a160972e29bf47b5063a3c9
Added to database: 05/26/2026, 20:58:26 UTC
Last enriched: 08/10/2026, 18:12:36 UTC
Last updated: 09/10/2026, 19:24:54 UTC
Views: 52
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