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

Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide (ELSA-2021-0298)

🟠 High   ⏱ 15–60 min  Last verified: 7 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-0298 Related CVEs: CVE-2021-23953 CVE-2021-23954 CVE-2020-26976 CVE-2021-23964 CVE-2020-15685 CVE-2021-23960 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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FreeBSD 12 — jasper — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — jasper — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 November 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: jasper — multiple vulnerabilities Related CVEs: CVE-2008-3520 CVE-2008-3522 CVE-2011-4516 CVE-2011-4517 CVE-2014-8137 CVE-2014-8138 CVE-2014-8157 CVE-2014-8158  +12 more Upstream summary: JasPer Releases: – Fix memory-related bugs in the JPEG-2000 codec resulting from […]

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Debian 11 — webkit2gtk — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — webkit2gtk — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-1745 CVE-2015-7096 CVE-2015-7098 CVE-2016-4590 CVE-2016-4591 CVE-2016-4622 CVE-2016-4624 CVE-2016-4692  +12 more Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – […]

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How to Scan for Vulnerabilities with OpenVAS on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Scan for Vulnerabilities with OpenVAS on RHEL 8

OpenVAS (Open Vulnerability Assessment System), now distributed as Greenbone Community Edition, is a powerful open-source vulnerability scanner that identifies known CVEs, misconfigurations, and weak credentials across your network. Running it as a containerized stack on RHEL 8 keeps the scanner isolated and easy to update without conflicting with system packages. This tutorial covers deploying Greenbone […]

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Arch Linux — jdk11-openjdk — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — jdk11-openjdk — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202107-53 Related CVEs: CVE-2021-2388 CVE-2021-2369 CVE-2021-2341 Upstream summary: Type: multiple issues. Status: Fixed. Affected: 11.0.11.u9-1. Fixed in: 11.0.12.u7-1. Group: AVG-2189. Table of contents Symptom & Impact Environment & Reproduction Root […]

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How to Install and Configure Ansible on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How to Install and Configure Ansible on Ubuntu 18.04

Configuration management systems are designed to make controlling large numbers of servers easy for administrators and operations teams. They allow you to control many different systems in an automated way from one central location. In this guide, we will discuss how to install Ansible on an Ubuntu 18.04 machine and go over some basics of how to use the software.

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FreeBSD 13 — proftpd-devel — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — proftpd-devel — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 6 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: proftpd — arbitrary code execution vulnerability with chroot Related CVEs: CVE-2008-4242 CVE-2008-4247 CVE-2009-0542 CVE-2009-0543 Upstream summary: The FreeBSD security advisory FreeBSD-SA-11:07.chroot reports: If ftpd is configured to place a user […]

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FreeBSD 13 — avahi — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

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

🟢 Low   ⏱ 5–15 min  Last verified: 6 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: avahi — denial of service Related CVEs: CVE-2010-2244 CVE-2011-1002 Upstream summary: Avahi developers reports: A vulnerability has been reported in Avahi, which can be exploited by malicious people to cause […]

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How to Set Up a Git Server with Gitea on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up a Git Server with Gitea on FreeBSD 13

Introduction Deploying set up a git server with gitea on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely […]

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