Linux

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2022-4872)

🟠 High   ⏱ 15–60 min  Last verified: 4 March 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-4872 Related CVEs: CVE-2022-31738 CVE-2022-31747 CVE-2022-31737 CVE-2022-31740 CVE-2022-31736 CVE-2022-31741 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Oracle Linux 8 — idm:DL1 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — idm:DL1 — vulnerability — patch and remediation guide (ELSA-2021-1983)

🟠 High   ⏱ 15–60 min  Last verified: 4 March 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1983 Related CVEs: CVE-2021-3480 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 — olcne — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — olcne — vulnerability — patch and remediation guide (ELSA-2021-9396)

🟠 High   ⏱ 15–60 min  Last verified: 4 March 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-9396 Related CVEs: CVE-2021-31921 CVE-2021-31920 CVE-2021-28683 CVE-2021-28682 CVE-2021-34824 CVE-2021-29258 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Arch Linux — linux-hardened — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — linux-hardened — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202210-1 Related CVEs: CVE-2022-42722 CVE-2022-42721 CVE-2022-42720 CVE-2022-42719 CVE-2022-41674 CVE-2019-17666 CVE-2021-3612 CVE-2021-3609  +12 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 5.1-1. Fixed in: 5.19.15.hardened2-1. Group: AVG-2800. Table of contents […]

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How to Set Up NFS High Availability on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up NFS High Availability on CentOS Stream 9

Introduction How to Set Up NFS High Availability 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 […]

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Oracle Linux 8 — python3 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — python3 — security and stability fixes — required update (ELSA-2019-3520)

🟡 Medium   ⏱ 10–30 min  Last verified: 3 March 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3520 Related CVEs: CVE-2019-9947 CVE-2019-9948 CVE-2019-9740 CVE-2019-5010 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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

AlmaLinux 8 — realmd — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:2088 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Set Up the Elastic Stack ELK on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up the Elastic Stack ELK on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up the elastic stack elk 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 […]

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Debian 11 — konversation — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — konversation — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-0129 CVE-2005-0130 CVE-2005-0131 CVE-2007-4400 CVE-2009-5050 CVE-2014-8483 CVE-2017-15923 Upstream summary: The Quick Buttons feature in Konversation 0.15 allows remote attackers to execute certain IRC commands via a channel name […]

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Debian 11 — djbdns — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — djbdns — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-4392 CVE-2009-0858 CVE-2012-1191 Upstream summary: dnscache in Daniel J. Bernstein djbdns 1.05 does not prevent simultaneous identical outbound DNS queries, which makes it easier for remote attackers to […]

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