Red Hat Security Advisory: OpenShift Container Platform 4.16.55 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 4.16.55. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/157888 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): * libarchive: Double free at archive_read_format_rar_seek_data() in archive_read_support_format_rar.c (CVE-2025-5914) * bind: Resource exhaustion via malformed DNSKEY handling (CVE-2025-8677) * bind: Cache poisoning attacks with unsolicited RRs (CVE-2025-40778) * bind: Cache poisoning due to weak PRNG (CVE-2025-40780) * expat: libexpat in Expat allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing (CVE-2025-59375) * libssh: out-of-bounds read in sftp_handle() (CVE-2025-5318) * qemu-kvm: VNC WebSocket handshake use-after-free (CVE-2025-11234) 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.
AI Analysis
Technical Summary
CVE-2025-5318 is an out-of-bounds read vulnerability in the libssh library's sftp_handle() function. This flaw affects Red Hat OpenShift Container Platform 4.16 prior to 4.16.55 and the Red Hat OpenShift distributed tracing platform (Tempo) 3.7.1. The vulnerability was addressed in Red Hat OpenShift Container Platform 4.16.55 and Tempo 3.7.1 releases. Red Hat has provided updated packages and container images to fix this issue. The advisory also references other security fixes in the same release, but CVE-2025-5318 specifically concerns libssh.
Potential Impact
The out-of-bounds read vulnerability could potentially lead to memory corruption or application crashes in affected libssh implementations within Red Hat OpenShift Container Platform and related components. The advisory rates the security impact as Important (high severity). No known exploits in the wild have been reported. The vulnerability affects multiple architectures including x86_64, aarch64, ppc64le, and s390x.
Mitigation Recommendations
Red Hat has released official security updates for OpenShift Container Platform 4.16.55 and distributed tracing platform Tempo 3.7.1 that address CVE-2025-5318. Users should upgrade to these versions using the OpenShift CLI or web console following Red Hat's documented upgrade procedures. The vendor advisory confirms that applying these updates fully mitigates the vulnerability. No additional workarounds or mitigations are indicated.
Red Hat Security Advisory: OpenShift Container Platform 4.16.55 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 4.16.55. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/157888 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): * libarchive: Double free at archive_read_format_rar_seek_data() in archive_read_support_format_rar.c (CVE-2025-5914) * bind: Resource exhaustion via malformed DNSKEY handling (CVE-2025-8677) * bind: Cache poisoning attacks with unsolicited RRs (CVE-2025-40778) * bind: Cache poisoning due to weak PRNG (CVE-2025-40780) * expat: libexpat in Expat allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing (CVE-2025-59375) * libssh: out-of-bounds read in sftp_handle() (CVE-2025-5318) * qemu-kvm: VNC WebSocket handshake use-after-free (CVE-2025-11234) 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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-5318 is an out-of-bounds read vulnerability in the libssh library's sftp_handle() function. This flaw affects Red Hat OpenShift Container Platform 4.16 prior to 4.16.55 and the Red Hat OpenShift distributed tracing platform (Tempo) 3.7.1. The vulnerability was addressed in Red Hat OpenShift Container Platform 4.16.55 and Tempo 3.7.1 releases. Red Hat has provided updated packages and container images to fix this issue. The advisory also references other security fixes in the same release, but CVE-2025-5318 specifically concerns libssh.
Potential Impact
The out-of-bounds read vulnerability could potentially lead to memory corruption or application crashes in affected libssh implementations within Red Hat OpenShift Container Platform and related components. The advisory rates the security impact as Important (high severity). No known exploits in the wild have been reported. The vulnerability affects multiple architectures including x86_64, aarch64, ppc64le, and s390x.
Mitigation Recommendations
Red Hat has released official security updates for OpenShift Container Platform 4.16.55 and distributed tracing platform Tempo 3.7.1 that address CVE-2025-5318. Users should upgrade to these versions using the OpenShift CLI or web console following Red Hat's documented upgrade procedures. The vendor advisory confirms that applying these updates fully mitigates the vulnerability. No additional workarounds or mitigations are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:0326
- Cve Count
- 7
- Additional Cves
- ["CVE-2025-5914","CVE-2025-8677","CVE-2025-11234","CVE-2025-40778","CVE-2025-40780","CVE-2025-59375"]
- Cvss Version
- 3.1
Threat ID: 6a175eefe29bf47b50eddd4a
Added to database: 05/27/2026, 21:15:27 UTC
Last enriched: 08/16/2026, 15:57:29 UTC
Last updated: 08/18/2026, 13:39:27 UTC
Views: 145
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