Fix Prevention

Oracle Linux 9 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — firefox — vulnerability — patch and remediation guide (ELSA-2025-10072)

🟠 High   ⏱ 15–60 min  Last verified: 26 August 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-10072 Related CVEs: CVE-2025-6425 CVE-2025-6430 CVE-2025-6429 CVE-2025-6424 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Alpine Linux 3.20 — libksba — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — libksba — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 1.6.3-r0 📖 ~4 min read  •  Source: Alpine secdb entry — libksba 1.6.3-r0 Related CVEs: CVE-2022-47629 CVE-2022-3515 Upstream summary: Alpine main repository for vv3.20 ships libksba 1.6.3-r0 which addresses CVE-2022-47629. Table of contents Symptom & Impact […]

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CentOS Stream 10 — qemu-kvm — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 10

CentOS Stream 10 — qemu-kvm — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 26 August 2025 Affected versions: CentOS Stream 10 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:1831 Related CVEs: CVE-2025-11234 Upstream summary: Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running […]

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openSUSE Tumbleweed — fontforge — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — fontforge — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory RHSA-2026:6628 (see also SUSE bugzilla) Related CVEs: CVE-2025-15270 CVE-2025-15269 CVE-2025-15275 CVE-2025-15279 CVE-2024-25081 CVE-2020-5395 CVE-2025-50949 CVE-2017-17521 Upstream summary: FontForge SFD File Parsing Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability […]

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Common Problems 119495

Debian 13 systemd-resolved DNS Resolution Failure

🟠 High   ⏱ 5–30 min  Last verified: 26 August 2025 Affected versions: Debian 13 📖 ~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 Monitor Nginx with nginx-prometheus-exporter on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Monitor Nginx with nginx-prometheus-exporter on Debian 13

Introduction How to Monitor Nginx with nginx-prometheus-exporter on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 12. […]

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Rocky Linux 8 — libvirt-dbus — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — libvirt-dbus — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2023:5264 Related CVEs: CVE-2022-40284 CVE-2023-3354 CVE-2025-11234 CVE-2021-3750 CVE-2023-3301 CVE-2021-46790 CVE-2022-30784 CVE-2022-30786  +4 more Upstream summary: Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. […]

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Common Problems 124005

Oracle Linux 10 – journalctl shows repeated kernel I-O errors on XFS – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 25 August 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 […]

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How to Deploy a Ruby on Rails App on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Deploy a Ruby on Rails App on Oracle Linux 10

Introduction How to Deploy a Ruby on Rails App 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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Common Problems 124004

Oracle Linux 10 – chronyd not synchronizing system time with NTP sources – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 25 August 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 […]

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