Red Hat Security Advisory: icu 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 4.20.34. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHSA-2026:54580 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): * kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources (CVE-2025-10263) * samba: Missing access check on reparse point operations (CVE-2026-1933) * sssd: sssd: sudo LDAP provider searches entire directory tree for sudoRole objects by default, enabling privilege escalation (CVE-2026-14474) * icu: Stack buffer overflow in the SRBRoot::addTag function (CVE-2025-5222) * kernel: KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026) * sssd: sssd: GPO cache path traversal via unsanitized gPCFileSysPath allows Kerberos authentication bypass (CVE-2026-14476) 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.
AI Analysis
Technical Summary
CVE-2025-5222 is a stack buffer overflow vulnerability in the SRBRoot::addTag function of the ICU library, which provides Unicode services. This flaw could potentially lead to memory corruption. Red Hat has issued security advisories RHSA-2025:11888 and RHSA-2025:12083 providing updated ICU packages for Red Hat Enterprise Linux 9 and 10 to remediate this issue. The vulnerability is rated as moderate severity by Red Hat Product Security.
Potential Impact
The vulnerability could allow an attacker to cause a stack buffer overflow, potentially leading to memory corruption. The exact impact is rated moderate by Red Hat, and no known exploits are currently reported in the wild. The flaw affects ICU library usage in Red Hat Enterprise Linux 9 and 10 variants on multiple hardware architectures.
Mitigation Recommendations
Red Hat has released official security updates for Red Hat Enterprise Linux 9 and 10 that address this vulnerability. Users should apply the updated ICU packages as detailed in Red Hat advisories RHSA-2025:11888 and RHSA-2025:12083. For update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigations are indicated by the vendor advisory.
Red Hat Security Advisory: icu 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 4.20.34. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHSA-2026:54580 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): * kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources (CVE-2025-10263) * samba: Missing access check on reparse point operations (CVE-2026-1933) * sssd: sssd: sudo LDAP provider searches entire directory tree for sudoRole objects by default, enabling privilege escalation (CVE-2026-14474) * icu: Stack buffer overflow in the SRBRoot::addTag function (CVE-2025-5222) * kernel: KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026) * sssd: sssd: GPO cache path traversal via unsanitized gPCFileSysPath allows Kerberos authentication bypass (CVE-2026-14476) 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
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-5222 is a stack buffer overflow vulnerability in the SRBRoot::addTag function of the ICU library, which provides Unicode services. This flaw could potentially lead to memory corruption. Red Hat has issued security advisories RHSA-2025:11888 and RHSA-2025:12083 providing updated ICU packages for Red Hat Enterprise Linux 9 and 10 to remediate this issue. The vulnerability is rated as moderate severity by Red Hat Product Security.
Potential Impact
The vulnerability could allow an attacker to cause a stack buffer overflow, potentially leading to memory corruption. The exact impact is rated moderate by Red Hat, and no known exploits are currently reported in the wild. The flaw affects ICU library usage in Red Hat Enterprise Linux 9 and 10 variants on multiple hardware architectures.
Mitigation Recommendations
Red Hat has released official security updates for Red Hat Enterprise Linux 9 and 10 that address this vulnerability. Users should apply the updated ICU packages as detailed in Red Hat advisories RHSA-2025:11888 and RHSA-2025:12083. For update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:12333
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a3da1e64853345fc182e205
Added to database: 06/25/2026, 21:47:18 UTC
Last enriched: 08/13/2026, 19:47:52 UTC
Last updated: 08/20/2026, 22:52:09 UTC
Views: 9
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