Linux

Alpine Linux edge — libvorbis — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — libvorbis — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.3.6-r2 📖 ~4 min read  •  Source: Alpine secdb entry — libvorbis 1.3.6-r2 Related CVEs: CVE-2018-10393 CVE-2018-10392 CVE-2018-5146 CVE-2017-14632 CVE-2017-14633 CVE-2017-14160 Upstream summary: Alpine main repository for vedge ships libvorbis 1.3.6-r2 which addresses CVE-2018-10393. Table of […]

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How to Configure DNSSEC on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure DNSSEC on RHEL 8

DNS Security Extensions (DNSSEC) protect against cache poisoning and spoofing by cryptographically signing DNS records. On RHEL 8, you can enforce DNSSEC validation using either BIND 9 or Unbound, both available in the default repositories. This tutorial walks through configuring a validating resolver, testing zone signatures, and detecting failures. Securing your resolver is a foundational […]

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Common Problems 115063

RHEL 8 multipath devices intermittently flap and fail paths

🟡 Medium   ⏱ 5–30 min  Last verified: 2 April 2020 📖 ~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 & Cross-Refs References & Further […]

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How to Configure Static IP on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Static IP on Debian 9

Introduction This guide explains how to Configure Static IP on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with the standard […]

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Gentoo Linux — dev-java/xmlrpc — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-java/xmlrpc — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202401-26 Related CVEs: CVE-2016-5002 CVE-2016-5003 CVE-2019-17570 Upstream summary: Multiple vulnerabilities have been discovered in Apache XML-RPC. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment […]

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How to Set Up MariaDB Galera Cluster on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up MariaDB Galera Cluster on Debian 10

Introduction Deploying set up mariadb galera cluster on debian 10 on a Debian 10 Buster 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 Ensure […]

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Gentoo Linux — dev-embedded/u-boot-tools — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-embedded/u-boot-tools — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202405-23 Related CVEs: CVE-2020-8432 Upstream summary: A vulnerability has been discovered in U-Boot tools. Please review the CVE identifier referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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Gentoo Linux — net-ftp/atftp — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-ftp/atftp — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202003-14 Related CVEs: CVE-2019-11365 CVE-2019-11366 Upstream summary: Multiple vulnerabilities have been discovered in atftp. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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SLES 12 — libjpeg8 — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libjpeg8 — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 2 April 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2020:173-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-2201 CVE-2020-17541 CVE-2020-35538 CVE-2020-13790 CVE-2014-9092 CVE-2017-15232 CVE-2018-1152 CVE-2018-11813  +1 more Upstream summary: In generate_jsimd_ycc_rgb_convert_neon of jsimd_arm64_neon.S, there is a possible out of bounds write due […]

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