Red Hat Enterprise Linux 9 uses firewalld as its default firewall management daemon, backed by nftables as the kernel netfilter framework (replacing iptables which was the default in RHEL 7 and earlier). firewalld provides a zone-based model where each network interface is assigned to a trust zone — public, internal, dmz, trusted, and more — […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read • Source: pkgsrc audit-packages entry Related CVEs: CVE-2015-8805 CVE-2015-8804 CVE-2015-8803 CVE-2018-16869 CVE-2021-20305 CVE-2016-6489 Upstream summary: pkgsrc audit-packages flagged nettle<3.2 for vulnerability class 'unspecified'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8805 Table of contents Symptom & Impact Environment & Reproduction Root Cause […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read • Source: pkgsrc audit-packages entry Related CVEs: CVE-2019-15847 CVE-2018-12886 Upstream summary: pkgsrc audit-packages flagged gcc7-[0-9]* for vulnerability class 'insufficiently-random-numbers'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2019-15847 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]
🟡 Medium ⏱ 5–30 min Last verified: 2 October 2025 Affected versions: Oracle Linux 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 […]
Introduction How to Harden the Kernel with sysctl 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 […]
🟠 High ⏱ 5–30 min Last verified: 2 October 2025 Affected versions: Oracle Linux 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 […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read • Source: Amazon Linux advisory ALAS2023LIVEPATCH-2025-071 Related CVEs: CVE-2025-38386 CVE-2025-38248 CVE-2025-38000 CVE-2025-38003 Upstream summary: In the Linux kernel, the following vulnerability has been resolved: ACPICA: Refuse to evaluate a method if arguments are missing (CVE-2025-38386) […]
🟠 High ⏱ 5–30 min Last verified: 2 October 2025 Affected versions: Oracle Linux 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 […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read • Source: Amazon Linux advisory ALAS2023NVIDIA-2025-170 Related CVEs: CVE-2025-23248 CVE-2025-23255 CVE-2025-23271 CVE-2025-23273 CVE-2025-23274 CVE-2025-23275 CVE-2025-23308 CVE-2025-23338 +3 more Upstream summary: NVIDIA CUDA Toolkit for all platforms contains a vulnerability in the nvdisasm binary where a […]
Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up mount nfs shares on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration will […]
