Red Hat Security Advisory: OpenShift Container Platform 4.20.37 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 4.20.37. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2026:63099 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): * librenswan: IKEv2 Denial of Service via malformed fragmentation (CVE-2026-12413) * sg3_utils: sg3_utils: arbitrary command execution via udev property injection in sg_inq --export (CVE-2026-16313) * libarchive: Double-Free Vulnerability in RAR5 Decompression Logic via dangling filtered_buf pointer in init_unpack() (CVE-2026-14164) * libreswan: badly formatted X.509 certificate can cause an assertion failure that crashes the daemon process (CVE-2026-14957) * librenswan: IKEv1 Denial of Service via RSA-SHA1 (PKCS#1 Version 1.5 Encrypted) authentication payload (CVE-2026-50721) * librenswan: IKEv2 Denial of Service via RSA-SHA1 (PKCS#1 RSASSA-PKCS1-v1_5) authentication payload (CVE-2026-50722) 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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers security updates in Red Hat OpenShift Container Platform 4.20.37, addressing several vulnerabilities: CVE-2026-12413 (librenswan IKEv2 denial of service via malformed fragmentation), CVE-2026-16313 (sg3_utils arbitrary command execution via udev property injection), CVE-2026-14164 (libarchive double-free vulnerability in RAR5 decompression), CVE-2026-14957 (libreswan assertion failure from malformed X.509 certificates), CVE-2026-50721 and CVE-2026-50722 (librenswan IKEv1 and IKEv2 denial of service via RSA-SHA1 authentication payloads). These vulnerabilities affect the stability and security of the platform by enabling denial of service or arbitrary code execution under certain conditions. The vendor has released updated packages and container images to address these issues.
Potential Impact
The vulnerabilities can lead to denial of service conditions by crashing daemon processes or causing assertion failures, and in one case, arbitrary command execution via udev property injection. These impacts can disrupt the availability and integrity of the affected OpenShift Container Platform deployments. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated packages and container images that fix these vulnerabilities. Users of OpenShift Container Platform 4.20 and 4.21 should upgrade to the updated versions when available via the appropriate release channels. The vendor provides instructions for upgrading clusters using the OpenShift CLI or web console. No additional mitigation actions are indicated beyond applying the official updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:55449
- Cve Count
- 4
- Additional Cves
- ["CVE-2026-14957","CVE-2026-50721","CVE-2026-50722"]
- State
- PUBLISHED
Threat ID: 6a885f1aacd9273b493f7931
Added to database: 08/21/2026, 14:22:18 UTC
Last enriched: 09/29/2026, 05:14:18 UTC
Last updated: 10/05/2026, 06:48:14 UTC
Views: 54
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.