December 2024 - Page 24 of 95

Common Problems 117055

Ubuntu 22.04 LTS – PostgreSQL refuses remote connections – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 24 December 2024 Affected versions: Ubuntu 22.04 LTS 📖 ~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 Configure MySQL Group Replication on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Configure MySQL Group Replication on CentOS Stream 10

Introduction Setting up configure mysql group replication 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 Configure MySQL Group Replication on CentOS Stream 10, with all the commands you need, the SELinux and firewalld considerations to […]

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Common Problems 116604

Ubuntu 24.04 LTS – NGINX fails to start because port 80 is already in use – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 24 December 2024 Affected versions: Ubuntu 24.04 LTS 📖 ~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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FreeBSD 14 — exim-postgresql — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — exim-postgresql — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 24 December 2024 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: exim — local privilege escalation Related CVEs: CVE-2004-0400 CVE-2005-0021 CVE-2005-0022 CVE-2011-0017 Upstream summary: exim.org reports: CVE-2011-0017 – check return value of setuid/setgid. This is a privilege escalation vulnerability whereby the […]

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Alpine Linux 3.19 — salt — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — salt — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 3006.6-r0 📖 ~4 min read  •  Source: Alpine secdb entry — salt 3006.6-r0 Related CVEs: CVE-2024-22231 CVE-2022-22934 CVE-2022-22935 CVE-2022-22936 CVE-2022-22941 CVE-2021-31607 CVE-2020-16846 CVE-2020-17490  +4 more Upstream summary: Alpine community repository for vv3.19 ships salt 3006.6-r0 which […]

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Common Problems 116552

Ubuntu 24.04 LTS – sshd fails to start after configuration change

🔴 Critical   ⏱ 5–30 min  Last verified: 24 December 2024 Affected versions: Ubuntu 24.04 LTS Ubuntu 24.04 Ubuntu 24.04.1 📖 ~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 […]

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FreeBSD 14 — php56-xml — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — php56-xml — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 December 2024 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2016-3074 Upstream summary: The PHP Group reports: BCMath: Fixed bug #72093 (bcpowmod accepts negative scale and corrupts _one_ definition). Exif: Fixed bug #72094 (Out […]

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Ubuntu 18.04 — python-werkzeug — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — python-werkzeug — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 24 December 2024 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6799-1 Related CVEs: CVE-2024-34069 CVE-2023-23934 CVE-2023-25577 CVE-2019-14806 CVE-2020-28724 Upstream summary: It was discovered that the debugger in Werkzeug was not restricted to trusted hosts. A remote attacker could possibly use […]

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Alpine Linux 3.19 — rust — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — rust — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 1.71.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — rust 1.71.1-r0 Related CVEs: CVE-2023-38497 CVE-2022-46176 CVE-2021-42574 CVE-2021-29922 CVE-2020-36323 CVE-2021-31162 CVE-2019-12083 CVE-2019-16760 Upstream summary: Alpine main repository for vv3.19 ships rust 1.71.1-r0 which addresses CVE-2023-38497. […]

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Common Problems 116435

Ubuntu 24.04 LTS – DNS resolution fails with systemd-resolved – Fix & Prevention (FIX-PREVENTION-3)

🟠 High   ⏱ 5–30 min  Last verified: 24 December 2024 Affected versions: Ubuntu 24.04 LTS 📖 ~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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