Security Hardening

SLES 12 — fontforge — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — fontforge — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 March 2025 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory RHSA-2024:4267 (see also SUSE bugzilla) Related CVEs: CVE-2024-25081 CVE-2024-25082 CVE-2020-25690 CVE-2020-5395 CVE-2020-5496 CVE-2017-11568 CVE-2017-11569 CVE-2017-11570  +7 more Upstream summary: Splinefont in FontForge through 20230101 allows command injection via crafted filenames. Table of […]

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Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2026-50261)

🟠 High   ⏱ 15–60 min  Last verified: 10 March 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-50261 Related CVEs: CVE-2024-50043 CVE-2024-53230 CVE-2024-53231 CVE-2024-58078 CVE-2025-21720 CVE-2025-21723 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Gentoo Linux — dev-libs/libxml2 — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-libs/libxml2 — multiple vulnerabilities (16 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202210-39 Related CVEs: CVE-2022-40303 CVE-2022-40304 CVE-2022-23308 CVE-2022-29824 CVE-2023-28484 CVE-2023-29469 CVE-2023-45322 CVE-2024-25062  +8 more Upstream summary: Multiple vulnerabilities have been discovered in libxml2. Please review the CVE identifiers referenced below for details. Table […]

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Amazon Linux 2 — 389-ds-base — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — 389-ds-base — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2025-3025 Related CVEs: CVE-2025-4404 CVE-2025-7493 CVE-2025-14905 CVE-2019-14824 CVE-2018-1089 CVE-2017-15135 CVE-2018-1054 CVE-2017-15134  +12 more Upstream summary: A privilege escalation flaw from host to domain administrator was found in FreeIPA. This vulnerability […]

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How to Install Nexus Repository on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Install Nexus Repository on CentOS Stream 10

Introduction CentOS Stream 10 ships with a stable, security-hardened base that makes deploying install nexus repository on centos stream 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Nexus Repository on CentOS Stream 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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NetBSD 10.0 — ruby-rexml — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — ruby-rexml — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 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-2021-28965 CVE-2025-58767 Upstream summary: pkgsrc audit-packages flagged ruby{25,26,27,30}-rexml<3.2.5 for vulnerability class 'input-validation'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-28965 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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How to Set Up a Firewall with firewalld on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Set Up a Firewall with firewalld on CentOS Stream 10

Introduction Setting up set up a firewall with firewalld on centos stream 10 on a CentOS Stream 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up a Firewall with firewalld on CentOS Stream 10, with all the commands you need, the SELinux […]

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NetBSD 10.0 — ja-trac — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — ja-trac — vulnerability — patch and remediation guide

🟡 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-2009-4405 Upstream summary: pkgsrc audit-packages flagged ja-trac<0.9.5.1 for vulnerability class 'cross-site-scripting'. Reference: http://jvn.jp/jp/JVN%2384091359/ Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Common Problems 127121

CentOS Stream 10 – Common Problem 216 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 9 March 2025 Affected versions: CentOS Stream 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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NetBSD 10.0 — confuse — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — confuse — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 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-2018-14447 CVE-2018-19760 CVE-2022-40320 Upstream summary: pkgsrc audit-packages flagged confuse<3.2.2 for vulnerability class 'out-of-bounds-read'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-14447 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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CHAT