Linux

Debian 9 — netty — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — netty — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 June 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-16869 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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Интеграция MongoDB с вашим приложением Node — step-by-step Linux tutorial on Progressive Robot

Интеграция MongoDB с вашим приложением Node

При работе с Node.js вы можете столкнуться с ситуацией, когда вы разрабатываете проект, который будет сохранять и запрашивать данные. В данном случае вам нужно будет выбрать решение для базы данных, которое будет отвечать характеристикам данных приложения и…

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Ubuntu 16.04 — evince — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — evince — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 16 June 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4067-1 Related CVEs: CVE-2019-1010006 https://launchpad.net/bugs/1794848 https://launchpad.net/bugs/1788929 CVE-2019-11459 CVE-2017-1000159 CVE-2017-1000083 Upstream summary: It was discovered that Evince incorrectly handled certain PDF files. An attacker could possibly use this issue to cause […]

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Cómo instalar y utilizar Composer en Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Cómo instalar y utilizar Composer en Ubuntu 20.04

Composer es una herramienta popular de administración de dependencias para PHP, creada principalmente para facilitar la instalación y actualización de dependencias de proyectos. Comprueba los demás paquetes de los que depende un proyecto específico y…

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Oracle Linux 8 — nodejs:12 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:12 — vulnerability — patch and remediation guide (ELSA-2020-0598)

🟠 High   ⏱ 15–60 min  Last verified: 16 June 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0598 Related CVEs: CVE-2019-15606 CVE-2019-15605 CVE-2019-15604 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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openSUSE Tumbleweed — autoyast2 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — autoyast2 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0676-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-18905 Upstream summary: A Insufficient Verification of Data Authenticity vulnerability in autoyast2 of SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 15 allows remote […]

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How to Install and Secure the Mosquitto MQTT Messaging Broker on Debian 8 — step-by-step Linux tutorial on Progressive Robot

How to Install and Secure the Mosquitto MQTT Messaging Broker on Debian 8

MQTT is a machine-to-machine messaging protocol, designed to provide lightweight publish/subscribe communication to “Internet of Things” devices. Mosquitto is a popular MQTT server (or broker, in MQTT parlance) that has great community support and is easy to install and configure. In this tutorial, we’ll install Mosquitto, retrieve SSL certificates from Let’s Encrypt, and set up our broker to use SSL to secure our password-protected MQTT communications.

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openSUSE Tumbleweed — tre — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — tre — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0554-1 (see also SUSE bugzilla) Related CVEs: CVE-2016-8859 Upstream summary: Multiple integer overflows in the TRE library and musl libc allow attackers to cause memory corruption via a large number of (1) […]

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Common Problems 120974

Debian 10 – apt update shows NO_PUBKEY and rejects repository signatures

🟠 High   ⏱ 5–30 min  Last verified: 15 June 2020 Affected versions: Debian 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 118536

Ubuntu 16.04 LTS – high CPU caused by kworker threads

🟠 High   ⏱ 5–30 min  Last verified: 15 June 2020 Affected versions: Ubuntu 16.04 LTS Ubuntu 16.04 Ubuntu 16.04.7 📖 ~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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