November 2021 - Page 21 of 66

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

Oracle Linux 8 — libqb — security and stability fixes — required update (ELSA-2019-3610)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3610 Related CVEs: CVE-2019-12779 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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Gentoo Linux — dev-ruby/bundler — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-ruby/bundler — 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-202408-22 Related CVEs: CVE-2019-3881 CVE-2020-36327 CVE-2021-43809 Upstream summary: Multiple vulnerabilities have been discovered in Bundler. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & […]

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FreeBSD 13 — redmine — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — redmine — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: redmine — information leak vulnerability Related CVEs: CVE-2012-0327 CVE-2014-1985 CVE-2015-8346 CVE-2015-8473 CVE-2015-8474 CVE-2015-8477 CVE-2015-8537 Upstream summary: Redmine reports: Data disclosure in atom feed. Table of contents Symptom & Impact Environment […]

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Common Problems 113108

Windows Server 2016 – WFP callout driver blocks RPC and domain traffic – Fix and Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Windows Server 2016 📖 ~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 Configure dnsmasq on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure dnsmasq on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure dnsmasq on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. This […]

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FreeBSD 13 — quake2forge — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — quake2forge — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: quake2 — multiple critical vulnerabilities Upstream summary: An advisory published by Richard Stanway describes numerous critical vulnerabilities in the Quake II engine: Due to unchecked input at various stages in […]

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How to Configure HACMP/PowerHA for High Availability on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure HACMP/PowerHA for High Availability on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure hacmp/powerha for high availability on ibm aix 7.1 […]

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FreeBSD 13 — pgp — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — pgp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: gnupg — OpenPGP symmetric encryption vulnerability Related CVEs: CVE-2005-0366 Upstream summary: Serge Mister and Robert Zuccherato reports that the OpenPGP protocol is vulnerable to a cryptographic attack when using symmetric […]

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Debian 11 — rust-bumpalo — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — rust-bumpalo — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-35861 Upstream summary: An issue was discovered in the bumpalo crate before 3.2.1 for Rust. The realloc feature allows the reading of unknown memory. Attackers can potentially read […]

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How to Configure Nginx Server Blocks (Virtual Hosts) on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Apache on Ubuntu 26.04

Apache HTTP Server is one of the most widely used web servers in the world. Its modular architecture supports a huge range of functionality including URL rewriting, authentication, and SSL. This guide installs Apache on Ubuntu 26.04 LTS and configures the firewall. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS server A […]

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