April 2020 - Page 4 of 66

FreeBSD 12 — ghostscript-afpl — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ghostscript-afpl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ghostscript — insecure temporary file creation vulnerability Related CVEs: CVE-2004-0967 Upstream summary: Ghostscript is affected by an insecure temporary file creation vulnerability. This issue is likely due to a design […]

Read more
Relational Operators in Java — step-by-step Programming tutorial on Progressive Robot

Relational Operators in Java

URL: https://www.progressiverobot.com/relational-operators-in-java/ Relational Operators in Java are used to comparing two variables for equality, non-equality, greater than, less than, etc. Java relational operator always returns a boolean value – true or false. Relational Operators in Java Java has 6 relational operators. \== is the equality operator. This returns true if both the operands are referring […]

Read more
FreeBSD 12 — py39-pyrad — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py39-pyrad — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: pyrad — multiple vulnerabilities Related CVEs: CVE-2013-0294 CVE-2013-0342 Upstream summary: Nathaniel McCallum reports: packet.py in pyrad before 2.1 uses weak random numbers to generate RADIUS authenticators and hash passwords, which […]

Read more
R melt() and cast() functions - Reshaping the data in R — step-by-step DevOps tutorial on Progressive Robot

R melt() and cast() functions – Reshaping the data in R

URL: https://www.progressiverobot.com/r-melt-and-cast-function/ Hello, readers! In this article, we would be having a look at an important concept of R programming – Reshaping data using R melt() and cast() functions, in detail. The R melt() and cast() functions help us to reshape the data within a data frame into any customized shape. Working with the R […]

Read more
Ubuntu 18.04 — pyxdg — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — pyxdg — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4700-1 Related CVEs: CVE-2019-12761 Upstream summary: Alexandre D'Hondt discovered that PyXDG did not properly sanitize input. An attacker could exploit this with a crafted .menu file to execute arbitrary code. […]

Read more
How to Write Ansible Playbooks for Debian 10 Systems — step-by-step Debian 10 tutorial on Progressive Robot

How to Write Ansible Playbooks for Debian 10 Systems

Introduction This guide explains how to Write Ansible Playbooks for Debian 10 Systems on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with the […]

Read more
Ubuntu 20.04を使用するための初期サーバーセットアップ — step-by-step Linux tutorial on Progressive Robot

Ubuntu 20.04を使用するための初期サーバーセットアップ

最初に新しいUbuntu 20.04サーバを作成するときは、基本的なセットアップの一部として、いくつかの重要な設定手順を実行する必要があります。これらの手順を踏むことで、サーバーのセキュリティと使い勝手が向上し、その後のアクションに必要な強固な基盤を手にすることができます。

Read more
Oracle Linux 8 — vim — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — vim — vulnerability — patch and remediation guide (ELSA-2020-4453)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4453 Related CVEs: CVE-2019-20807 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2020-5691)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5691 Related CVEs: CVE-2020-11609 CVE-2020-11608 CVE-2020-11668 CVE-2020-9391 CVE-2020-8647 CVE-2020-8649 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

Read more
CHAT