May 2020 - Page 8 of 69

Arch Linux — qutebrowser — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — qutebrowser — multiple vulnerabilities (3 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-201807-3 Related CVEs: CVE-2018-10895 CVE-2018-1000559 CVE-2020-11054 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 1.4.0-1. Fixed in: 1.4.1-1. Group: AVG-735. Table of contents Symptom & Impact Environment & Reproduction […]

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FreeBSD 12 — postgresql92-client — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — postgresql92-client — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: PostgreSQL vulnerabilities Related CVEs: CVE-2016-5423 CVE-2016-5424 Upstream summary: The PostgreSQL project reports: Security Fixes nested CASE expressions + database and role names with embedded special characters CVE-2017-7484: selectivity estimators bypass […]

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Common Problems 112620

Windows Server 2019 Write Cache Policy Disabled Reducing Array Write Performance – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Windows Server 2019 📖 ~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 […]

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How to Set Up SLES 12 in AWS — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Set Up SLES 12 in AWS

Introduction This tutorial covers How to Set Up SLES 12 in AWS on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: zypper refresh […]

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FreeBSD 12 — zabbix3-proxy — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — zabbix3-proxy — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Zabbix — Remote code execution Related CVEs: CVE-2017-2824 CVE-2020-11800 Upstream summary: Zabbix reports: Fixed security vulnerability cve-2020-11800 (remote code execution). (ZBX-17600) Table of contents Symptom & Impact Environment & Reproduction […]

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FreeBSD 12 — kf5-kio — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — kf5-kio — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: kio: Information Leak when accessing https when using a malicious PAC file Upstream summary: Albert Astals Cid reports: Using a malicious PAC file, and then using exfiltration methods in the […]

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How To Set Up Mattermost on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Set Up Mattermost on Ubuntu 20.04

Mattermost is an open source collaboration and messaging platform created with security and configurability in mind providing comparable functionality to Discord or Slack. In this tutorial, you will set up the Mattermost Team Edition on your Ubuntu 20.04 server.

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How to Configure Blackbox Exporter for Endpoint Monitoring on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Blackbox Exporter for Endpoint Monitoring on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up configure blackbox exporter for endpoint monitoring on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step […]

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