Logging Monitoring

openSUSE Leap 15.5 — libz1 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — libz1 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:3556-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-45853 Upstream summary: MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, […]

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

Oracle Linux 8 — GraalVM — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 December 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12939 Related CVEs: CVE-2023-22081 CVE-2023-30589 CVE-2023-30590 CVE-2023-22067 CVE-2023-30588 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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How to Install and Configure Varnish Cache on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install and Configure Varnish Cache on Debian 12

Introduction This guide explains how to Install and Configure Varnish Cache 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 […]

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Alpine Linux 3.18 — ncurses — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — ncurses — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 6.3_p20220416-r0 📖 ~4 min read  •  Source: Alpine secdb entry — ncurses 6.3_p20220416-r0 Related CVEs: CVE-2022-29458 CVE-2021-39537 CVE-2018-10754 CVE-2017-16879 CVE-2017-10684 Upstream summary: Alpine main repository for vv3.18 ships ncurses 6.3_p20220416-r0 which addresses CVE-2022-29458. Table of contents […]

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How to Use Podman Compose on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Use Podman Compose on CentOS Stream 9

Introduction How to Use Podman Compose on CentOS Stream 9 on CentOS Stream 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]

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NetBSD 9.4 — stellarium — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — stellarium — vulnerability — 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-2023-28371 Upstream summary: pkgsrc audit-packages flagged stellarium<23.1 for vulnerability class 'directory-traversal'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2023-28371 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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How to Set Up BGP Routing with BIRD on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Set Up BGP Routing with BIRD on FreeBSD 14

Introduction This guide explains how to Set Up BGP Routing with BIRD on FreeBSD 14 on FreeBSD 14. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum […]

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How to Install Java (OpenJDK 21) on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Install Java (OpenJDK 21) on FreeBSD 14

Introduction FreeBSD 14 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install java (openjdk 21) on freebsd 14 on FreeBSD 14 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

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AlmaLinux 8 — dnsmasq — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — dnsmasq — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2024:1335 Related CVEs: CVE-2023-50387 CVE-2023-50868 CVE-2023-28450 CVE-2022-0934 CVE-2021-3448 Upstream summary: The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server. Security Fix(es): * […]

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AlmaLinux 8 — edk2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — edk2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2024:3017 Related CVEs: CVE-2022-36763 CVE-2022-36764 CVE-2022-36765 CVE-2023-45229 CVE-2023-45231 CVE-2023-45232 CVE-2023-45233 CVE-2023-45235  +12 more Upstream summary: EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains […]

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