December 2021 - Page 31 of 71

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

Oracle Linux 8 — curl — security and stability fixes — required update (ELSA-2023-2963)

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2963 Related CVEs: CVE-2022-43552 CVE-2022-35252 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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FreeBSD 13 — rubygem-doorkeeper-rails — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — rubygem-doorkeeper-rails — 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: rubygem-doorkeeper — token revocation vulnerability Related CVEs: CVE-2018-1000211 Upstream summary: NVD reports: Doorkeeper version 4.2.0 and later contains a Incorrect Access Control vulnerability in Token revocation API's authorized method that […]

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

FreeBSD 13 — gtetrinet — 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: gtetrinet — remote code execution Related CVEs: CVE-2006-3125 Upstream summary: The Debian Security Team reports: Michael Gehring discovered several potential out-of-bounds index accesses in gtetrinet, a multiplayer Tetris-like game, which […]

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How to Automate CentOS Stream 9 with Ansible — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Automate CentOS Stream 9 with Ansible

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying automate centos stream 9 with ansible both straightforward and auditable. This tutorial covers the complete procedure for how to Automate CentOS Stream 9 with Ansible, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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How to Profile Applications with gprof on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Profile Applications with gprof 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 profile applications with gprof on ibm aix 7.1 on […]

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

FreeBSD 13 — atutor — 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: atutor — multiple vulnerabilities Upstream summary: ATutor reports: Security Fixes: Added a new layer of security over all php superglobals, fixed several XSS, CSRF, and SQL injection vulnerabilities. Table of […]

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Debian 11 — redir — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — redir — 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-2020-37182 Upstream summary: Redir 3.3 contains a stack overflow vulnerability in the doproxyconnect() function that allows attackers to crash the application by sending oversized input. Attackers can exploit […]

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

Debian 11 — node-getobject — 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-2020-28282 Upstream summary: Prototype pollution vulnerability in 'getobject' version 0.1.0 allows an attacker to cause a denial of service and may lead to remote code execution. Table of […]

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Understanding Class Inheritance in Python 3 — step-by-step Python tutorial on Progressive Robot

Understanding Class Inheritance in Python 3

This tutorial will go through some of the major aspects of inheritance in Python, including how parent classes and child classes work, how to override methods and attributes, how to use the super() function, and how to make use of multiple inheritance.

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