How To Create a Self-Signed SSL Certificate for Nginx in Ubuntu 20.04
In this guide, we will show you how to set up a self-signed SSL certificate for use with an Nginx web server on an Ubuntu 20.04 server.
Ubuntu 18.04 — apr — 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-7038-1 Related CVEs: CVE-2023-49582 Upstream summary: Thomas Stangner discovered a permission vulnerability in the Apache Portable Runtime (APR) library. A local attacker could possibly use this issue to read named […]
Oracle Linux 8 — perl-HTTP-Tiny — vulnerability — patch and remediation guide (ELSA-2023-7174)
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2023-7174 Related CVEs: CVE-2023-31486 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
How to Configure Docker Overlay Networking on Debian 12
Introduction This guide explains how to Configure Docker Overlay Networking on Debian 12 on Debian 12 Bookworm. Debian Bookworm 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 12 install with the […]
Beyond Crypto: How Blockchain Is Taking Over the Business World
Blockchain is well known as the technology behind cryptocurrencies like Bitcoin and Ethereum, but there’s so much more to the story. In this talk we’ll explore some of the most exciting emerging technologies in the blockchain space, examining how they’re evolving the infrastructure and practices of businesses all over the world.
AlmaLinux 9 — linux-firmware — multiple vulnerabilities (10 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read • Source: AlmaLinux ALSA ALSA-2023:6595 Related CVEs: CVE-2022-27635 CVE-2022-36351 CVE-2022-38076 CVE-2022-40964 CVE-2022-46329 CVE-2023-20569 CVE-2023-20584 CVE-2023-31356 +2 more Upstream summary: The linux-firmware packages contain all of the firmware files that are required by various devices to operate. […]
openSUSE Tumbleweed — libcdt5 — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2024:1351-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-46045 Upstream summary: Graphviz 2.36.0 through 9.x before 10.0.1 has an out-of-bounds read via a crafted config6a file. NOTE: exploitability may be uncommon because this […]
Windows Server 2022 — KB5023769 — multiple vulnerabilities (20 CVEs) — patch and remediation guide
🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read • Source: Microsoft KB5023769 • MSRC update-guide entry Related CVEs: CVE-2023-21708 CVE-2023-23415 CVE-2023-23385 CVE-2023-23394 CVE-2023-23401 CVE-2023-23402 CVE-2023-23405 CVE-2023-23407 +12 more Affected components: Windows Server 2022 Table of contents Symptom & Impact Environment & Reproduction Root […]
Gentoo Linux — net-vpn/tor — multiple vulnerabilities (10 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read • Source: Gentoo GLSA GLSA-202305-11 Related CVEs: CVE-2021-38385 CVE-2022-33903 CVE-2023-23589 CVE-2021-28089 CVE-2021-28090 CVE-2021-34548 CVE-2021-34549 CVE-2021-34550 +2 more Upstream summary: Multiple vulnerabilities have been discovered in Tor. Please review the CVE identifiers referenced below for details. Table […]
NetBSD 9.4 — magento — multiple vulnerabilities (14 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read • Source: pkgsrc audit-packages entry Related CVEs: CVE-2015-6497 CVE-2016-4010 CVE-2014-9758 CVE-2016-10704 CVE-2018-5301 CVE-2019-7139 CVE-2020-9690 CVE-2020-9692 +6 more Upstream summary: pkgsrc audit-packages flagged magento-[0-9]* for vulnerability class 'multiple-vulnerabilities'. Reference: http://blog.checkpoint.com/2015/04/20/analyzing-magento-vulnerability/ Table of contents Symptom & Impact Environment […]
