Logging Monitoring

Oracle Linux 9 — 8.1 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — 8.1 — vulnerability — patch and remediation guide (ELSA-2023-2417)

🟡 Medium   ⏱ 10–30 min  Last verified: 27 July 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2417 Related CVEs: CVE-2022-31629 CVE-2022-31630 CVE-2022-31628 CVE-2022-31631 CVE-2022-37454 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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FreeBSD 13 — mpg123-esound — multiple vulnerabilities (6 CVEs) — patch and remediation guide

FreeBSD 13 — mpg123-esound — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mpg123 — buffer overflow vulnerability Related CVEs: CVE-2003-0577 CVE-2003-0865 CVE-2004-0805 CVE-2004-0982 CVE-2004-0991 CVE-2004-1284 Upstream summary: Yuri D'Elia has found a buffer overflow vulnerability in mpg123's parsing of frame headers in […]

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How to Install Jenkins on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install Jenkins on Debian 11

Introduction This guide explains how to Install Jenkins on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install with the standard repositories […]

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Oracle Linux 8 — exiv2 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — exiv2 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-1758)

🟢 Low   ⏱ 5–15 min  Last verified: 26 July 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1758 Related CVEs: CVE-2019-17402 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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Common Problems 120685

Debian 11 Firewall Rules Block Required Service Ports

🟠 High   ⏱ 5–30 min  Last verified: 26 July 2022 Affected versions: Debian 11 📖 ~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 118135

Ubuntu 18.04 Unattended-Upgrades Stuck and Never Completes

🟡 Medium   ⏱ 5–30 min  Last verified: 26 July 2022 📖 ~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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FreeBSD 12 — p5-Image-ExifTool — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — p5-Image-ExifTool — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 July 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Security Vulnerability found in ExifTool leading to RCE Related CVEs: CVE-2021-22204 CVE-2022-23935 Upstream summary: Debian Security tracker reports: ExifTool.pm in ExifTool before 12.38 mishandles a file special characters check, leading […]

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