Linux

Debian 11 — opt — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — opt — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0390 Upstream summary: Multiple buffer overflows in Options Parsing Tool (OPT) shared library 3.18 and earlier, when used in setuid programs, may allow local users to execute arbitrary […]

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Debian 11 — pyyaml — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — pyyaml — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 12 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-9130 CVE-2017-18342 CVE-2019-20477 CVE-2020-14343 CVE-2020-1747 Upstream summary: scanner.c in LibYAML 0.1.5 and 0.1.6, as used in the YAML-LibYAML (aka YAML-XS) module for Perl, allows context-dependent attackers to cause […]

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Installieren von R unter Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Installieren von R unter Ubuntu 20.04

Die Open-Source-Programmiersprache R ist für die Ausführung von Datenanalysen und statistischer Datenverarbeitung weit verbreitet. Unterstützt durch die R Foundation für Statistische Datenverarbeitung ist sie eine zunehmend beliebte und erweiterbare Sprache mit einer aktiven…

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Debian 11 — ktorrent — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ktorrent — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 12 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-1384 CVE-2007-1385 CVE-2007-1799 CVE-2008-5905 CVE-2008-5906 Upstream summary: Directory traversal vulnerability in torrent.cpp in KTorrent before 2.1.2 allows remote attackers to overwrite arbitrary files via ".." sequences in a […]

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Ubuntu 18.04 — flask-security — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — flask-security — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 December 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6792-1 Related CVEs: CVE-2021-23385 Upstream summary: Naom Moshe discovered that Flask-Security incorrectly validated URLs. An attacker could use this issue to redirect users to arbitrary URLs. Table of contents Symptom […]

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How to Install Netdata on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Netdata on RHEL 8

Netdata is a lightweight, real-time performance monitoring agent that collects thousands of system and application metrics with per-second granularity and displays them through a built-in, zero-configuration web dashboard. Unlike heavier stacks, Netdata starts delivering useful insights within minutes of installation and requires virtually no ongoing maintenance. It can also stream metrics to a central parent […]

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Oracle Linux 8 — libreoffice security fix update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libreoffice security fix update (ELSA-2024-1514)

🟠 High   ⏱ 15–60 min  Last verified: 11 December 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-1514 Related CVEs: CVE-2023-6186 CVE-2023-6185 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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AlmaLinux 8 — libgexiv2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libgexiv2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2020:1577 Related CVEs: CVE-2017-18005 CVE-2018-10772 CVE-2018-11037 CVE-2018-14338 CVE-2018-17229 CVE-2018-17230 CVE-2018-17282 CVE-2018-17581  +12 more Upstream summary: The exiv2 packages provide a command line utility which can display and manipulate image metadata such as […]

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How to Configure Container Networking on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure Container Networking on CentOS Stream 9

Introduction How to Configure Container Networking on CentOS Stream 9 on CentOS Stream 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]

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Установка Nginx на Debian 9 — step-by-step Linux tutorial on Progressive Robot

Установка Nginx на Debian 9

Nginx — один из самых популярных веб-серверов в мире. На веб-серверах Nginx размещены некоторые самые крупные сайты в Интернете с самым высоким уровнем трафика. Обычно он использует ресурсы эффективнее, чем Apache, и может использоваться как веб-сервер или…

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