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Oracle Linux 8 — .NET Core 2.1 security and bugfix update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET Core 2.1 security and bugfix update (ELSA-2021-3145)

🟢 Low   ⏱ 5–15 min  Last verified: 3 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3145 Related CVEs: CVE-2021-34485 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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Common Problems 114908

RHEL 8 RPM Database Locked During Automated Updates

🟡 Medium   ⏱ 5–30 min  Last verified: 3 November 2021 📖 ~2 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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FreeBSD 13 — php53-sqlite — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — php53-sqlite — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php5-sqlite — open_basedir bypass Related CVEs: CVE-2012-3365 Upstream summary: MITRE CVE team reports: The SQLite functionality in PHP before 5.3.15 allows remote attackers to bypass the open_basedir protection mechanism via […]

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How to Set Up SUSE Security Module on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Set Up SUSE Security Module on SLES 15

Introduction This tutorial covers How to Set Up SUSE Security Module on SLES 15 on SLES 15. SLES 15 (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 15 system is up to date: […]

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AlmaLinux 8 — google-noto-emoji-fonts — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — google-noto-emoji-fonts — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2021:4229 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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FreeBSD 13 — ziproxy — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — ziproxy — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ziproxy — security vulnerability in PNG decoder Related CVEs: CVE-2009-0804 CVE-2010-1513 Upstream summary: Daniel Mealha Cabrita reports: Fixed security vulnerability (heap-related) in PNG decoder. (new bug from 3.1.0) Table of […]

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Una introducción a OAuth 2 — step-by-step Security tutorial on Progressive Robot

Una introducción a OAuth 2

OAuth 2 es una estructura (framework) de autorización que le permite a las aplicaciones obtener acceso limitado a cuentas de usuario en un servicio HTTP, como Facebook, GitHub y the cloud provider. Delega la autenticación del usuario al servicio que aloja la cuenta del mismo y…

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FreeBSD 13 — pubcookie-login-server — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — pubcookie-login-server — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Pubcookie Login Server — XSS vulnerability Upstream summary: Nathan Dors, Pubcookie Project reports: A new non-persistent XSS vulnerability was found in the Pubcookie login server's compiled binary "index.cgi" CGI program. […]

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Debian 11 — node-chownr — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — node-chownr — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-18869 Upstream summary: A TOCTOU issue in the chownr package before 1.1.0 for Node.js 10.10 could allow a local attacker to trick it into descending into unintended directories […]

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Spring @Service Annotation — step-by-step DevOps tutorial on Progressive Robot

Spring @Service Annotation

URL: https://www.progressiverobot.com/spring-service-annotation/ Spring @Service annotation is a specialization of [@Component](/community/tutorials/spring-component) annotation. Spring Service annotation can be applied only to classes. It is used to mark the class as a service provider. Spring @Service Annotation Spring @Service annotation is used with classes that provide some business functionalities. Spring context will autodetect these classes when annotation-based configuration […]

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