chris

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

Oracle Linux 8 — git — vulnerability — patch and remediation guide (ELSA-2020-1513)

🟠 High   ⏱ 15–60 min  Last verified: 25 February 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1513 Related CVEs: CVE-2020-5260 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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Basic Animations in Flutter — step-by-step DevOps tutorial on Progressive Robot

Basic Animations in Flutter

Learn how to create basic effects using Flutter’s built in controller API. You’ll learn about linear animations, curved animations, tweens and cross screens.

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How To Build a Custom Terraform Module — step-by-step Devops tutorial on Progressive Robot

How To Build a Custom Terraform Module

Terraform modules encapsulate distinct logical components of your infrastructure by grouping their resources together. In this tutorial, you’ll create a Terraform module that will set up multiple Droplets behind a Load Balancer for redundancy. You’ll also use the for_each and count looping features of the Hashicorp Configuration Language (HCL) to deploy multiple customized instances of the module at the same time.

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Common Problems 118561

Ubuntu 16.04 LTS – LightDM login loop returns to greeter repeatedly – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 24 February 2020 Affected versions: Ubuntu 16.04 LTS 📖 ~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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FreeBSD 12 — py39-yaml — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py39-yaml — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 February 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: PyYAML — arbitrary code execution Related CVEs: CVE-2020-14343 Upstream summary: A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution […]

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How to Configure Automatic Security Updates on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure Automatic Security Updates on SLES 15

Introduction This tutorial covers How to Configure Automatic Security Updates 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: zypper […]

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How to Use sar for System Activity Reporting on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use sar for System Activity Reporting 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 use sar for system activity reporting on ibm aix […]

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

FreeBSD 12 — krfb — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 February 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: krfb — Multiple security issues in bundled libvncserver Related CVEs: CVE-2014-4607 CVE-2014-6055 Upstream summary: Martin Sandsmark reports: krfb 4.14 [and earlier] embeds libvncserver which has had several security issues. Several […]

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FreeBSD 12 — timidity++-tcltk — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — timidity++-tcltk — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 24 February 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: TiMidity++ — Multiple vulnerabilities Related CVEs: CVE-2017-11546 CVE-2017-11547 CVE-2017-11549 Upstream summary: qflb.wu of DBAPPSecurity reports: Ihe insert_note_steps function in readmidi.c in TiMidity++ 2.14.0 can cause a denial of service(divide-by-zero error […]

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