Security Hardening

How to Set Up a BIND9 DNS Server on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Set Up a BIND9 DNS Server on Oracle Linux 10

Introduction How to Set Up a BIND9 DNS Server 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 […]

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NetBSD 9.4 — p5-JSON-XS — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — p5-JSON-XS — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2025-40928 Upstream summary: pkgsrc audit-packages flagged p5-JSON-XS<4.04 for vulnerability class 'integer-overflow'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-40928 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Debian 13 — cmake — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — cmake — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 13 October 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-3560 CVE-2009-3720 CVE-2025-9301 Upstream summary: The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause […]

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Debian 13 — rust-sudo-rs — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — rust-sudo-rs — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 13 October 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-46717 CVE-2025-46718 CVE-2025-64170 CVE-2025-64517 Upstream summary: sudo-rs is a memory safe implementation of sudo and su written in Rust. Prior to version 0.2.6, users with no (or very […]

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Debian 13 — freeipa — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — freeipa — multiple vulnerabilities (18 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 13 October 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-7828 CVE-2014-7850 CVE-2015-5179 CVE-2016-5404 CVE-2016-7030 CVE-2016-9575 CVE-2017-12169 CVE-2019-10195  +10 more Upstream summary: FreeIPA 4.0.x before 4.0.5 and 4.1.x before 4.1.1, when 2FA is enabled, allows remote attackers to […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2025:19719 Related CVEs: CVE-2025-59830 CVE-2025-61770 CVE-2025-61771 CVE-2025-61772 CVE-2025-61919 CVE-2025-46727 CVE-2025-47287 CVE-2024-52804  +12 more Upstream summary: The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fix(es): * […]

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Common Problems 122682

OpenSSL CA Store Issues Break Outbound HTTPS

🟡 Medium   ⏱ 5–30 min  Last verified: 13 October 2025 Affected versions: FreeBSD 14 📖 ~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 119480

Debian 13 DNS Resolution Fails with systemd-resolved Misconfiguration

🟡 Medium   ⏱ 5–30 min  Last verified: 13 October 2025 📖 ~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 & Cross-Refs References & Further […]

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Debian 11 — libwww-oauth-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libwww-oauth-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 October 2025 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-40905 Upstream summary: WWW::OAuth 1.000 and earlier for Perl uses the rand() function as the default source of entropy, which is not cryptographically secure, for cryptographic functions. Table […]

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