Fix Prevention

How to Install Jenkins on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Install Jenkins on Windows Server 2012 R2

How to Install Jenkins on Windows Server 2012 R2 Jenkins is one of the most widely adopted open-source automation servers in the industry, enabling organizations to build, test, and deploy software with repeatable, auditable pipelines. On Windows Server 2012 R2, Jenkins runs as a Windows service on top of the Java Runtime Environment, integrating naturally […]

Read more
Amazon Linux 2 — evince — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — evince — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2020-1511 Related CVEs: CVE-2019-14494 CVE-2019-11459 Upstream summary: A divide-by-zero error was found in the way Poppler handled certain PDF files. A remote attacker could exploit this flaw by providing a […]

Read more
FreeBSD 12 — openvpn-polarssl — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — openvpn-polarssl — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 6 June 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OpenVPN — out-of-bounds write in legacy key-method 1 Related CVEs: CVE-2017-12166 CVE-2017-7478 CVE-2017-7479 CVE-2017-7508 CVE-2017-7512 CVE-2017-7520 CVE-2017-7521 CVE-2017-7522 Upstream summary: Steffan Karger reports: The bounds check in read_key() was performed […]

Read more
How to Configure Hyper-V Virtual Networking on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Hyper-V Virtual Networking on Windows Server 2019

Introduction to Hyper-V Virtual Networking on Windows Server 2019 Hyper-V virtual networking is the fabric that connects virtual machines to each other, to the physical network, and to the Hyper-V host. Windows Server 2019 introduces several significant networking improvements over previous versions, including support for Software Defined Networking (SDN), the Virtual Filtering Platform (VFP) extension, […]

Read more
Ubuntu 18.04 — flightcrew — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — flightcrew — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 6 June 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4055-1 Related CVEs: CVE-2019-13032 CVE-2019-13241 CVE-2019-13453 Upstream summary: Mike Salvatore discovered that FlightCrew improperly handled certain malformed EPUB files. An attacker could potentially use this vulnerability to cause a denial […]

Read more
How to Set Up Alertmanager with PagerDuty and Slack Integration on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up Alertmanager with PagerDuty and Slack Integration on RHEL 8

Alertmanager handles alert routing, deduplication, and notification dispatch for Prometheus. By integrating it with Slack and PagerDuty, your team receives real-time notifications through familiar channels while on-call engineers get paged for critical incidents. This tutorial walks through installing Alertmanager on RHEL 8, configuring receivers for both platforms, setting up routing logic, and verifying the setup […]

Read more
SLES 15 — libgnomesu — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libgnomesu — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 6 June 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2011-1946 Upstream summary: gnomesu-pam-backend in libgnomesu 1.0.0 prints an error message but proceeds with the non-error code path upon failure of the setgid or setuid […]

Read more
Debian 9 — mupdf — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — mupdf — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 6 June 2019 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-14685 CVE-2017-15587 CVE-2017-17866 CVE-2018-6544 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

Read more
Arch Linux — wesnoth — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — wesnoth — vulnerability — 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-201807-15 Related CVEs: CVE-2018-1999023 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 1.14.3-1. Fixed in: 1.14.4-1. Group: AVG-741. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

Read more
CHAT