Linux

Debian 12 — openrefine-butterfly — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — openrefine-butterfly — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 December 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2024-47883 Upstream summary: The OpenRefine fork of the MIT Simile Butterfly server is a modular web application framework. The Butterfly framework uses the `java.net.URL` class to refer to […]

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Alpine Linux 3.19 — mujs — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — mujs — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 1.3.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — mujs 1.3.0-r0 Related CVEs: CVE-2022-30974 CVE-2022-30975 Upstream summary: Alpine community repository for vv3.19 ships mujs 1.3.0-r0 which addresses CVE-2022-30974. Table of contents Symptom & Impact […]

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Ubuntu 16.04 — kdepim — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — kdepim — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 December 2024 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7729-1 Related CVEs: CVE-2020-11880 CVE-2019-10732 CVE-2024-50624 CVE-2017-17689 Upstream summary: Damian Poddebniak, Christian Dresen, Jens Müller, Fabian Ising, Sebastian Schinzel, Simon Friedberger, Juraj Somorovsky, and Jörg Schwenk discovered that the KMail […]

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Alpine Linux 3.19 — asterisk — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — asterisk — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 20.9.3-r1 📖 ~4 min read  •  Source: Alpine secdb entry — asterisk 20.9.3-r1 Related CVEs: CVE-2024-53566 CVE-2024-35190 CVE-2024-42365 CVE-2024-42491 CVE-2023-37457 CVE-2023-49294 CVE-2023-49786 CVE-2021-32558  +12 more Upstream summary: Alpine main repository for vv3.19 ships asterisk 20.9.3-r1 which […]

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

Oracle Linux 9 — expat — vulnerability — patch and remediation guide (ELSA-2024-9541)

🟡 Medium   ⏱ 10–30 min  Last verified: 18 December 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-9541 Related CVEs: CVE-2024-50602 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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How to Set Up Two-Factor Authentication (2FA) for SSH on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Manage AppArmor Profiles on Ubuntu 24.04

AppArmor is a Linux Security Module (LSM) built into the Ubuntu kernel that restricts what programs can do. Ubuntu 24.04 LTS ships with AppArmor enabled by default and includes profiles for many common applications. This guide explains how to view, enable, and create AppArmor profiles. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 […]

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Alpine Linux 3.18 — postgresql15 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — postgresql15 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 9.6.4-r0 📖 ~4 min read  •  Source: Alpine secdb entry — postgresql15 9.6.4-r0 Related CVEs: CVE-2017-7546 CVE-2017-7547 CVE-2017-7548 CVE-2017-7484 CVE-2017-7485 CVE-2017-7486 CVE-2024-10976 CVE-2024-10977  +12 more Upstream summary: Alpine main repository for vv3.18 ships postgresql15 9.6.4-r0 which […]

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Oracle Linux 9 — java-11-openjdk — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — java-11-openjdk — security and stability fixes — required update (ELSA-2023-0202)

🟡 Medium   ⏱ 10–30 min  Last verified: 17 December 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0202 Related CVEs: CVE-2023-21835 CVE-2023-21843 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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Common Problems 126969

CentOS Stream 10 – Common Problem 226 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 17 December 2024 Affected versions: CentOS Stream 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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Common Problems 119999

Debian 12: SSH login denied after hardening changes

🔴 Critical   ⏱ 5–30 min  Last verified: 17 December 2024 Affected versions: Debian 12 📖 ~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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