Red Hat Security Advisory: OpenShift Container Platform 4.18.34 packages and security update
Red Hat OpenShift Container Platform 4. 18. 34 includes a security update addressing CVE-2025-52881, a vulnerability in the runc component related to opencontainers/selinux. This flaw allows container escape and denial of service through arbitrary write gadgets and procfs write redirects. The update is rated as important by Red Hat Product Security. Users of OpenShift Container Platform 4. 18 are advised to upgrade to the updated packages and container images available in the appropriate release channels. Instructions for upgrading clusters are provided by Red Hat. No known exploits in the wild have been reported at this time.
AI Analysis
Technical Summary
This advisory covers a security update for Red Hat OpenShift Container Platform 4.18.34 that fixes a vulnerability identified as CVE-2025-52881 in the runc component. The vulnerability involves opencontainers/selinux and allows container escape and denial of service via arbitrary write gadgets and procfs write redirects. The update includes RPM packages and container images to remediate the issue. Red Hat rates the security impact as important and recommends upgrading to the fixed versions using the OpenShift CLI or web console. Detailed upgrade instructions are available in Red Hat's official documentation.
Potential Impact
The vulnerability allows an attacker to escape container isolation and cause denial of service by exploiting arbitrary write capabilities and procfs write redirects in the runc component. This could compromise container security boundaries within OpenShift Container Platform 4.18 deployments. However, there are no known exploits in the wild currently reported. The security impact is rated as important by Red Hat.
Mitigation Recommendations
A security update is available for Red Hat OpenShift Container Platform 4.18.34 that addresses CVE-2025-52881. Users should upgrade to the updated RPM packages and container images as soon as they are available in their release channels. Upgrades can be performed using the OpenShift CLI (oc) or the web console. Follow Red Hat's official upgrade documentation to fully apply the errata update. No additional mitigation actions are specified by the vendor.
Red Hat Security Advisory: OpenShift Container Platform 4.18.34 packages and security update
Description
Red Hat OpenShift Container Platform 4. 18. 34 includes a security update addressing CVE-2025-52881, a vulnerability in the runc component related to opencontainers/selinux. This flaw allows container escape and denial of service through arbitrary write gadgets and procfs write redirects. The update is rated as important by Red Hat Product Security. Users of OpenShift Container Platform 4. 18 are advised to upgrade to the updated packages and container images available in the appropriate release channels. Instructions for upgrading clusters are provided by Red Hat. No known exploits in the wild have been reported at this time.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers a security update for Red Hat OpenShift Container Platform 4.18.34 that fixes a vulnerability identified as CVE-2025-52881 in the runc component. The vulnerability involves opencontainers/selinux and allows container escape and denial of service via arbitrary write gadgets and procfs write redirects. The update includes RPM packages and container images to remediate the issue. Red Hat rates the security impact as important and recommends upgrading to the fixed versions using the OpenShift CLI or web console. Detailed upgrade instructions are available in Red Hat's official documentation.
Potential Impact
The vulnerability allows an attacker to escape container isolation and cause denial of service by exploiting arbitrary write capabilities and procfs write redirects in the runc component. This could compromise container security boundaries within OpenShift Container Platform 4.18 deployments. However, there are no known exploits in the wild currently reported. The security impact is rated as important by Red Hat.
Mitigation Recommendations
A security update is available for Red Hat OpenShift Container Platform 4.18.34 that addresses CVE-2025-52881. Users should upgrade to the updated RPM packages and container images as soon as they are available in their release channels. Upgrades can be performed using the OpenShift CLI (oc) or the web console. Follow Red Hat's official upgrade documentation to fully apply the errata update. No additional mitigation actions 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-2026:2975
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a160977e29bf47b50642821
Added to database: 5/26/2026, 8:58:31 PM
Last enriched: 5/26/2026, 10:13:35 PM
Last updated: 5/27/2026, 4:52:58 AM
Views: 2
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