September 2021 - Page 18 of 66

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

Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide (ELSA-2021-2264)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-2264 Related CVEs: CVE-2021-29956 CVE-2021-29967 CVE-2021-29957 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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IBM AIX 7.1 — CVE-2021-29691 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2021-29691 — vulnerability — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 25 May 2026 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2021-29691, IBM Support Bulletin CVE: CVE-2021-29691 NVD summary: IBM Security Identity Manager 7.0.2 contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound […]

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How to Install and Configure Memcached on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install and Configure Memcached on RHEL 9

Memcached is a high-performance, distributed in-memory key-value cache designed specifically for caching database query results, session data, and computed values. Unlike Redis, Memcached is deliberately simple — it does not support persistence, replication, or complex data types. This simplicity makes Memcached extremely fast and memory-efficient: it uses a slab allocator to eliminate memory fragmentation and […]

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Cómo instalar R en Ubuntu 20.04 [Guía de inicio rápido] — step-by-step Linux tutorial on Progressive Robot

Cómo instalar R en Ubuntu 20.04 [Guía de inicio rápido]

R es un lenguaje de programación de código abierto que se especializa en informática estadística y gráficos. En este tutorial, instalaremos R en un servidor Ubuntu 20.04. Para obtener una versión más detallada de este tutorial, con más explicaciones de cada paso, consulte…

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Oracle Linux 8 — .NET 5.0 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET 5.0 security, bug fix, and — enhancement update — new behaviour and fixes

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-2200 Related CVEs: CVE-2022-29117 CVE-2022-23267 CVE-2022-29145 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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Arch Linux — tor — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — tor — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201712-10 Related CVEs: CVE-2017-8823 CVE-2017-8822 CVE-2017-8820 CVE-2017-8819 CVE-2021-34550 CVE-2021-34549 CVE-2021-34548 CVE-2017-0377  +2 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 0.3.1.8-1. Fixed in: 0.3.1.9-1. Group: AVG-539. Table of contents […]

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FreeBSD 13 — wordpress-mu — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — wordpress-mu — multiple vulnerabilities (4 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: wordpress — remote admin password reset vulnerability Related CVEs: CVE-2007-4894 CVE-2008-4107 CVE-2008-5278 CVE-2009-2762 Upstream summary: WordPress reports: A specially crafted URL could be requested that would allow an attacker to […]

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Common Problems 117544

Ubuntu 20.04 LTS Docker Permission Denied on /var/run/docker.sock

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 📖 ~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 & Cross-Refs References & Further […]

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