August 2021 - Page 35 of 69

FreeBSD 12 — cryptopp — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — cryptopp — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: cryptopp — ElGamal implementation allows plaintext recovery Related CVEs: CVE-2015-2141 CVE-2016-3995 CVE-2016-7420 CVE-2021-40530 Upstream summary: Crypto++ 8.6 release notes reports: The ElGamal implementation in Crypto++ through 8.5 allows plaintext recovery […]

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Ubuntu 14.04 — zeromq3 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — zeromq3 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4920-1 Related CVEs: CVE-2019-13132 CVE-2020-15166 CVE-2021-20234 CVE-2021-20235 CVE-2021-20237 Upstream summary: It was discovered that ZeroMQ incorrectly handled certain application metadata. A remote attacker could use this issue to cause ZeroMQ […]

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How To Install and Configure Neo4j on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Configure Neo4j on Ubuntu 20.04

Neo4j is a graph database that records relationships between data nodes, whereas traditional relational databases use rows and columns to store and structure data. Since each node stores references to all the other nodes that it is connected to, Neo4j…

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Ubuntu 18.04 — python-bleach — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — python-bleach — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8077-1 Related CVEs: CVE-2020-6816 CVE-2021-23980 CVE-2018-7753 CVE-2020-6802 CVE-2020-6817 Upstream summary: It was discovered that Bleach did not properly sanitize URI attributes containing character entities. An attacker could possibly use this […]

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How to Install Ansible Navigator on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Ansible Navigator on RHEL 10

Introduction This tutorial demonstrates how to Install Ansible Navigator on RHEL 10 on RHEL 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered RHEL 10 system with the default AppStream repositories enabled. […]

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

Oracle Linux 8 — samba — vulnerability — patch and remediation guide (ELSA-2021-5082)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-5082 Related CVEs: CVE-2016-2124 CVE-2020-25717 CVE-2021-23192 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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How To Crawl A Web Page with Scrapy and Python 3 — step-by-step Python tutorial on Progressive Robot

How To Crawl A Web Page with Scrapy and Python 3

Whether you want to mine data about a set of products, get a large corpus of text or quantitative data to play around with, get data from a site without an official API, or just satisfy your own personal curiosity, web scraping is a powerful way to work with data

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Oracle Linux 8 — container-tools:2.0 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — container-tools:2.0 — vulnerability — patch and remediation guide (ELSA-2021-2291)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-2291 Related CVEs: CVE-2021-30465 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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How To Add Unit Testing to Your Django Project — step-by-step Python tutorial on Progressive Robot

How To Add Unit Testing to Your Django Project

Testing a website can be a complex task to undertake because it is made up of several layers of logic like handling HTTP requests, form validation, and rendering templates. However Django provides a set of tools that makes testing your web application seamless. In this tutorial, you will set up a test suite in your Django project and write unit tests for the models and views in your application. You will run these tests, analyze their results, and learn how to find the causes of failing tests.

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Debian 10 — lxml — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — lxml — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-27783 CVE-2021-28957 CVE-2021-43818 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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