Red Hat Security Advisory: OpenShift Container Platform 4.18.23 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 4.18.23. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2025:14816 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: Heap Use-After-Free in libxslt caused by atype corruption in xmlAttrPtr (CVE-2025-7425) * libxml2: Out-of-Bounds Read in libxml2 (CVE-2025-32414) * libxml2: Out-of-bounds Read in xmlSchemaIDCFillNodeTables (CVE-2025-32415) 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.
AI Analysis
Technical Summary
This advisory covers security fixes in Red Hat OpenShift Container Platform 4.18.23, specifically addressing three vulnerabilities: CVE-2025-7425, a heap use-after-free in libxslt due to type corruption in xmlAttrPtr; CVE-2025-32414, an out-of-bounds read in libxml2; and CVE-2025-32415, another out-of-bounds read in xmlSchemaIDCFillNodeTables within libxml2. These vulnerabilities could potentially lead to memory corruption or information disclosure. The affected versions are OpenShift Container Platform 4.18 releases from 4.18.0 up to but excluding 4.18.23. Red Hat has released updated container images and RPM packages to address these issues. Users should upgrade their clusters using the OpenShift CLI or web console following Red Hat's documented procedures.
Potential Impact
The vulnerabilities fixed include a heap use-after-free and out-of-bounds memory reads, which can cause memory corruption or potentially allow attackers to read unauthorized memory. The security impact is rated as Important by Red Hat, indicating a high severity level that could affect the confidentiality or stability of affected systems if exploited. There are no known exploits in the wild at this time.
Mitigation Recommendations
A fix is available in Red Hat OpenShift Container Platform version 4.18.23. Users running affected versions (>=4.18.0 <4.18.23) should upgrade to 4.18.23 using the OpenShift CLI (oc) or web console as per Red Hat's upgrade documentation. The vendor manages remediation through updated container images and RPM packages. Follow the official Red Hat guidance and release notes for detailed upgrade instructions. No additional mitigations are specified beyond applying the update.
Red Hat Security Advisory: OpenShift Container Platform 4.18.23 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 4.18.23. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2025:14816 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: Heap Use-After-Free in libxslt caused by atype corruption in xmlAttrPtr (CVE-2025-7425) * libxml2: Out-of-Bounds Read in libxml2 (CVE-2025-32414) * libxml2: Out-of-bounds Read in xmlSchemaIDCFillNodeTables (CVE-2025-32415) 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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers security fixes in Red Hat OpenShift Container Platform 4.18.23, specifically addressing three vulnerabilities: CVE-2025-7425, a heap use-after-free in libxslt due to type corruption in xmlAttrPtr; CVE-2025-32414, an out-of-bounds read in libxml2; and CVE-2025-32415, another out-of-bounds read in xmlSchemaIDCFillNodeTables within libxml2. These vulnerabilities could potentially lead to memory corruption or information disclosure. The affected versions are OpenShift Container Platform 4.18 releases from 4.18.0 up to but excluding 4.18.23. Red Hat has released updated container images and RPM packages to address these issues. Users should upgrade their clusters using the OpenShift CLI or web console following Red Hat's documented procedures.
Potential Impact
The vulnerabilities fixed include a heap use-after-free and out-of-bounds memory reads, which can cause memory corruption or potentially allow attackers to read unauthorized memory. The security impact is rated as Important by Red Hat, indicating a high severity level that could affect the confidentiality or stability of affected systems if exploited. There are no known exploits in the wild at this time.
Mitigation Recommendations
A fix is available in Red Hat OpenShift Container Platform version 4.18.23. Users running affected versions (>=4.18.0 <4.18.23) should upgrade to 4.18.23 using the OpenShift CLI (oc) or web console as per Red Hat's upgrade documentation. The vendor manages remediation through updated container images and RPM packages. Follow the official Red Hat guidance and release notes for detailed upgrade instructions. No additional mitigations are specified 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-2025:14818
- Cve Count
- 3
- Additional Cves
- ["CVE-2025-32414","CVE-2025-32415"]
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a1f4e88e29bf47b50081bad
Added to database: 06/02/2026, 21:43:36 UTC
Last enriched: 08/16/2026, 17:15:22 UTC
Last updated: 10/02/2026, 14:46:04 UTC
Views: 106
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