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Ubuntu 24.04 — libvirt — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — libvirt — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 September 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6763-1 Related CVEs: CVE-2024-4418 CVE-2024-1441 CVE-2024-2494 Upstream summary: Martin Širokov discovered that libvirt incorrectly handled certain memory operations. A local attacker could possibly use this issue to access virtproxyd without […]

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Oracle Linux 9 — ruby:3.3 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — ruby:3.3 — vulnerability — patch and remediation guide (ELSA-2025-4493)

🟡 Medium   ⏱ 10–30 min  Last verified: 19 September 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-4493 Related CVEs: CVE-2025-27221 CVE-2025-27219 CVE-2025-25186 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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Alpine Linux 3.20 — neovim — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — neovim — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 0.3.6-r0 📖 ~4 min read  •  Source: Alpine secdb entry — neovim 0.3.6-r0 Related CVEs: CVE-2019-12735 CVE-2017-5953 CVE-2017-6349 CVE-2017-6350 CVE-2016-1248 Upstream summary: Alpine community repository for vv3.20 ships neovim 0.3.6-r0 which addresses CVE-2019-12735. Table of contents […]

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Common Problems 119582

Debian 13 – Apache2 Fails to Start Because Port 80 Is Already in Use – Resolution

🟠 High   ⏱ 5–30 min  Last verified: 19 September 2025 Affected versions: Debian 13 (Trixie) 📖 ~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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Windows Server 2019 — KB5058385 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5058385 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5058385 • MSRC update-guide entry Related CVEs: CVE-2025-32710 CVE-2025-29966 CVE-2025-29967 CVE-2025-29833 CVE-2024-49128 CVE-2025-55229 CVE-2025-47955 CVE-2025-29959  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Use after free in Windows […]

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How to Configure Rate Limiting in Nginx on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Rate Limiting in Nginx on Debian 13

Introduction How to Configure Rate Limiting in Nginx 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 […]

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How to Configure Static File Serving with Nginx on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Static File Serving with Nginx on Debian 13

Introduction Deploying configure static file serving with nginx on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, […]

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NetBSD 10.0 — emacs24-24.4* — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — emacs24 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2014-9483 Upstream summary: pkgsrc audit-packages flagged emacs24 for vulnerability class 'sensitive-information-disclosure'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2014-9483 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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NetBSD 10.0 — p5-Module-Signature — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — p5-Module-Signature — 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-2015-3406 Upstream summary: pkgsrc audit-packages flagged p5-Module-Signature<0.75 for vulnerability class 'multiple-vulnerabilities'. Reference: http://seclists.org/oss-sec/2015/q2/59 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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FreeBSD 12 — py311-h — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py311-h — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 September 2025 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: h11 accepts some malformed Chunked-Encoding bodies Related CVEs: CVE-2025-43859 Upstream summary: h11 reports: h11 is a Python implementation of HTTP/1.1. Prior to version 0.16.0, a leniency in h11's parsing of […]

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