Logging Monitoring

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

Oracle Linux 9 — gnutls — vulnerability — patch and remediation guide (ELSA-2025-20606)

🟡 Medium   ⏱ 10–30 min  Last verified: 26 August 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-20606 Related CVEs: CVE-2025-32988 CVE-2025-6395 CVE-2025-32989 CVE-2025-32990 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 — polkit — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — polkit — 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 0.120-r2 📖 ~4 min read  •  Source: Alpine secdb entry — polkit 0.120-r2 Related CVEs: CVE-2021-4034 CVE-2021-3560 Upstream summary: Alpine community repository for vv3.20 ships polkit 0.120-r2 which addresses CVE-2021-4034. Table of contents Symptom & Impact […]

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Oracle Linux 8 — mingw-expat — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — mingw-expat — vulnerability — patch and remediation guide (ELSA-2025-21974)

🟠 High   ⏱ 15–60 min  Last verified: 26 August 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-21974 Related CVEs: CVE-2025-59375 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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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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