Package Management

Ubuntu 18.04 — linux-azure-5.3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — linux-azure-5.3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 15 June 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4465-1 Related CVEs: CVE-2020-12655 CVE-2020-12771 CVE-2020-15393 CVE-2020-24394 CVE-2019-16089 CVE-2019-19462 CVE-2019-20810 CVE-2019-20908  +12 more Upstream summary: It was discovered that the XFS file system implementation in the Linux kernel did not […]

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AlmaLinux 8 — openwsman — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — openwsman — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2020:4689 Related CVEs: CVE-2019-3833 Upstream summary: Openwsman is a project intended to provide an open source implementation of the Web Services Management specification (WS-Management) and to expose system management information on the […]

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How to Install Nomad on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Nomad on FreeBSD 13

Introduction How to Install Nomad on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, and […]

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Ubuntu 18.04 — lynx — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — lynx — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 15 June 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4800-1 Related CVEs: CVE-2016-9179 CVE-2017-1000211 CVE-2021-38165 Upstream summary: It was discovered that Lynx incorrectly handled certain URLs. A remote attacker could possibly use this issue to obtain sensitive information or […]

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openSUSE Tumbleweed — ruby3.1-rubygem-fluentd — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ruby3.1-rubygem-fluentd — 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-2025:15115-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-41186 Upstream summary: Fluentd collects events from various data sources and writes them to files to help unify logging infrastructure. The parser_apache2 plugin in Fluentd […]

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IBM AIX 7.1 — CVE-2020-4937 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2020-4937 — vulnerability — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 15 June 2021 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2020-4937, IBM Support Bulletin CVE: CVE-2020-4937 NVD summary: IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 6.0.3.2 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive […]

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Alpine Linux edge — gnuchess — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — gnuchess — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 6.2.9-r0 📖 ~4 min read  •  Source: Alpine secdb entry — gnuchess 6.2.9-r0 Related CVEs: CVE-2021-30184 Upstream summary: Alpine community repository for vedge ships gnuchess 6.2.9-r0 which addresses CVE-2021-30184. Table of contents Symptom & Impact Environment […]

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How to Install Docker Compose on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Docker Compose on Debian 9 (DEBIAN-9-2)

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up install docker compose 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 the […]

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Oracle Linux 8 — squid:4 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — squid:4 — security and stability fixes — required update (ELSA-2019-3476)

🟡 Medium   ⏱ 10–30 min  Last verified: 14 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3476 Related CVEs: CVE-2019-13345 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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