🟠 High ⏱ 15–60 min Last verified: 1 January 2026 Affected versions: Oracle Linux 9 📖 ~4 min read • Source: ELSA advisory ELSA-2025-15661 Related CVEs: CVE-2025-38332 CVE-2025-38352 CVE-2025-38449 CVE-2025-22097 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]
🟠 High ⏱ 5–30 min Last verified: 31 December 2025 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related […]
🟠 High ⏱ 5–30 min Last verified: 30 December 2025 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read • Source: Amazon Linux advisory ALAS2LIVEPATCH-2025-269 Related CVEs: CVE-2025-38527 CVE-2025-39677 CVE-2025-39691 CVE-2025-39730 CVE-2025-38386 CVE-2022-49935 Upstream summary: In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free in cifs_oplock_break (CVE-2025-38527) In the […]
🟡 Medium ⏱ 5–30 min Last verified: 28 December 2025 Affected versions: FreeBSD 15 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]
nftables is the modern successor to iptables and is the default firewall framework in RHEL 9. It replaces iptables, ip6tables, arptables, and ebtables with a single unified tool, offering better performance through an improved kernel path, atomic rule replacement, and a cleaner, more readable configuration syntax. This tutorial covers everything you need to know to […]
🔴 Critical ⏱ 15–90 min Last verified: 25 December 2025 Affected versions: SLES 15 📖 ~4 min read • Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2017-15118 CVE-2025-11234 CVE-2024-4467 CVE-2024-7409 CVE-2024-3446 CVE-2023-1544 CVE-2024-24474 CVE-2024-26327 +12 more Upstream summary: A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu […]
Introduction How to Configure PAM on Oracle Linux 10 on Oracle Linux 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible […]
🟠 High ⏱ 5–30 min Last verified: 21 December 2025 Affected versions: RHEL 10 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]
Efficient Docker image and container management is fundamental to maintaining a healthy container environment. Docker images accumulate on hosts — old base images, build cache layers, and unused intermediate images can consume tens of gigabytes of disk space if not managed regularly. Understanding the Docker image layer model is key: images consist of read-only layers […]
