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Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

0
High
Published: 04/07/2026 (04/07/2026, 23:30:26 UTC)
Source: GCVE Database
Vendor/Project: Red Hat Product Security
Product: Red Hat

Description

Red Hat has issued security advisories addressing multiple vulnerabilities in Red Hat OpenShift Container Platform 4.18 and Red Hat Hardened Images RPMs. The updates fix issues including resource exhaustion, cache poisoning, out-of-bounds memory access, and use-after-free vulnerabilities affecting components such as bind, expat, openssl, and qemu-kvm. The advisories recommend upgrading to the updated packages and container images to mitigate these vulnerabilities.

Affected software

Affected versions
>=4.18.0 <4.18.31

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/01/2026, 22:30:50 UTC

Technical Analysis

This security advisory covers multiple vulnerabilities affecting Red Hat OpenShift Container Platform 4.18 and Red Hat Hardened Images RPMs. Key fixes include: CVE-2025-8677 (bind resource exhaustion via malformed DNSKEY handling), CVE-2025-40778 and CVE-2025-40780 (bind cache poisoning attacks and weak PRNG), CVE-2025-59375 (libexpat large dynamic memory allocations via small XML documents), CVE-2025-9230 (openssl out-of-bounds read and write in RFC 3211 KEK unwrap), and CVE-2025-11234 (qemu-kvm VNC WebSocket handshake use-after-free). The advisories provide updated container images and RPM packages for Red Hat OpenShift Container Platform 4.18.31 and Red Hat Hardened Images RPMs. Users are advised to upgrade using official channels and tools such as the OpenShift CLI or web console. No known exploits in the wild have been reported at this time.

Potential Impact

The vulnerabilities fixed in this update could allow attackers to cause resource exhaustion, poison DNS caches, trigger large memory allocations, perform out-of-bounds memory accesses, or exploit use-after-free conditions. These issues could lead to denial of service, cache poisoning, or potential memory corruption in affected components. The impact is rated as high by Red Hat Product Security.

Mitigation Recommendations

A fix is available through updated RPM packages and container images for Red Hat OpenShift Container Platform 4.18.31 and Red Hat Hardened Images RPMs. Users should upgrade to these updated versions via the appropriate release channels using the OpenShift CLI (oc) or web console. Detailed upgrade instructions are provided in the official Red Hat documentation. No additional mitigations are indicated beyond applying the official updates.

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Technical Details

Gcve Source
db.gcve.eu
Csaf Category
csaf_security_advisory
Csaf Version
2.0
Publisher
Red Hat Product Security
Advisory Id
RHSA-2026:0332
Cve Count
6
Additional Cves
["CVE-2025-9230","CVE-2025-11234","CVE-2025-40778","CVE-2025-40780","CVE-2025-59375"]
Cvss Version
null

Threat ID: 6a175eefe29bf47b50eddd3e

Added to database: 05/27/2026, 21:15:27 UTC

Last enriched: 08/01/2026, 22:30:50 UTC

Last updated: 08/01/2026, 22:30:50 UTC

Views: 74

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