Package Management

How to Set Up MariaDB Replication on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up MariaDB Replication on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up mariadb replication on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and […]

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Ubuntu 18.04 — libgcrypt20 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libgcrypt20 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 4 May 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5080-1 Related CVEs: CVE-2021-33560 CVE-2021-40528 CVE-2019-13627 CVE-2018-0495 Upstream summary: It was discovered that Libgcrypt incorrectly handled ElGamal encryption. An attacker could possibly use this issue to recover sensitive information. Table […]

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SLES 12 — arpwatch — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — arpwatch — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 4 May 2022 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:14759-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-25321 Upstream summary: A UNIX Symbolic Link (Symlink) Following vulnerability in arpwatch of SUSE Linux Enterprise Server 11-SP4-LTSS, SUSE Manager Server 4.0, SUSE OpenStack Cloud […]

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Alpine Linux edge — docker-cli-compose — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — docker-cli-compose — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 2.15.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — docker-cli-compose 2.15.1-r0 Related CVEs: CVE-2022-27664 CVE-2022-32149 CVE-2022-39253 Upstream summary: Alpine community repository for vedge ships docker-cli-compose 2.15.1-r0 which addresses CVE-2022-27664. Table of contents Symptom & […]

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Oracle Linux 8 — container-tools:ol8 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — container-tools:ol8 — vulnerability — patch and remediation guide (ELSA-2021-2371)

🟠 High   ⏱ 15–60 min  Last verified: 4 May 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-2371 Related CVEs: CVE-2021-30465 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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Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2022-9602)

🟠 High   ⏱ 15–60 min  Last verified: 4 May 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9602 Related CVEs: CVE-2022-21505 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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openSUSE Tumbleweed — python36-django-debug-toolbar — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python36-django-debug-toolbar — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2021-30459 Upstream summary: A SQL Injection issue in the SQL Panel in Jazzband Django Debug Toolbar before 1.11.1, 2.x before 2.2.1, and 3.x before 3.2.1 allows attackers to execute […]

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How to Configure DNSSEC Validation on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure DNSSEC Validation on Debian 11

Introduction How to Configure DNSSEC Validation on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye 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 11. This […]

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