Security Hardening

Oracle Linux 10 — ELSA-2025-20181-0: pam — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — ELSA-2025-20181-0: pam — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 May 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-20181-0 Related CVEs: CVE-2025-6020 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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FreeBSD 12 — apache — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — apache — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: www/apache24 — Multiple vulnerabilities Related CVEs: CVE-2003-0993 CVE-2004-0113 CVE-2004-0492 CVE-2004-0747 CVE-2004-0748 CVE-2004-0751 CVE-2004-0786 CVE-2004-0809  +12 more Upstream summary: The Apache httpd project reports: mod_proxy_ajp: CVE-2026-34059, CVE-2026-34032, CVE-2026-33857, CVE-2026-28780 multiple modules: […]

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Fedora 42 — mysql8.4 — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on Fedora 42

Fedora 42 — mysql8.4 — multiple vulnerabilities (14 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Fedora 42 📖 ~4 min read  •  Source: Fedora update FEDORA-2026-a4e0e8211d Related CVEs: CVE-2026-21998 CVE-2026-22001 CVE-2026-22002 CVE-2026-22004 CVE-2026-22005 CVE-2026-22009 CVE-2026-22015 CVE-2026-22017  +6 more Upstream summary: **MySQL 8.4.9** Release notes: https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-9.html Known issue: s390x-specific issue – zlib with DFLTCC compressed pages with low […]

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FreeBSD 13 — ungoogled-chromium — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — ungoogled-chromium — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: chromium — security fixes Related CVEs: CVE-2022-3445 CVE-2022-3446 CVE-2022-3447 CVE-2022-3448 CVE-2022-3449 CVE-2022-3450 CVE-2022-3652 CVE-2022-3653  +12 more Upstream summary: Chrome Releases reports: This update includes 127 security fixes: Critical: [493747582] CVE-2026-7896: […]

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AlmaLinux 8 — libecap — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libecap — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:7213 Related CVEs: CVE-2023-46846 CVE-2023-46847 CVE-2026-32748 CVE-2026-33526 CVE-2025-62168 CVE-2024-23638 CVE-2024-45802 CVE-2023-50269  +12 more Upstream summary: Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. […]

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FreeBSD 15 — qt6-webengine — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — qt6-webengine — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 May 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: qt6-webengine — multiple vulnerabilities Related CVEs: CVE-2023-5186 CVE-2023-5187 CVE-2023-5217 CVE-2023-5218 CVE-2023-5473 CVE-2023-5474 CVE-2023-5475 CVE-2023-5476  +12 more Upstream summary: Qt qtwebengine-chromium repo reports: Backports for 262 security bugs in Chromium: CVE-2025-13223: […]

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FreeBSD 15 — w3m-img — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — w3m-img — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 May 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: w3m – multiple vulnerabilities Related CVEs: CVE-2006-6772 CVE-2016-9422 CVE-2016-9423 CVE-2016-9424 CVE-2016-9425 CVE-2016-9426 CVE-2016-9428 CVE-2016-9429  +12 more Upstream summary: Tatsuya Kinoshita reports: CVE-2018-6196 * table.c: Prevent negative indent value in feed_table_block_tag(). […]

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Common Problems 113953

RHEL 10 – NetworkManager connection profile ignored after reboot – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 25 May 2026 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 & […]

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Common Problems 115930

Ubuntu 26.04 LTS DKMS Module Build Fails After Kernel Update

🔴 Critical   ⏱ 5–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~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 […]

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How to Configure rkhunter Rootkit Scanner on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure rkhunter Rootkit Scanner on FreeBSD 15

Introduction Deploying configure rkhunter rootkit scanner on a FreeBSD 15 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + ports […]

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