Logging Monitoring

Debian 12 — libcdaudio — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libcdaudio — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-0706 CVE-2008-5030 Upstream summary: Buffer overflow in discdb.c for grip 3.1.2 allows attackers to cause a denial of service (crash) and possibly execute arbitrary code by causing the […]

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How to Set Up Alertmanager Email Notifications on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up Alertmanager Email Notifications on Debian 12

Introduction Deploying set up alertmanager email notifications on debian 12 on a Debian 12 Bookworm machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You […]

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Alpine Linux 3.18 — salt — multiple vulnerabilities (11 CVEs) — patch and remediation guide

Alpine Linux 3.18 — salt — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 3004.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — salt 3004.1-r0 Related CVEs: CVE-2022-22934 CVE-2022-22935 CVE-2022-22936 CVE-2022-22941 CVE-2021-31607 CVE-2020-16846 CVE-2020-17490 CVE-2020-25592  +3 more Upstream summary: Alpine community repository for vv3.18 ships salt 3004.1-r0 which […]

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Ubuntu 18.04 — pypdf2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — pypdf2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 December 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6280-1 Related CVEs: CVE-2023-36810 CVE-2022-24859 Upstream summary: It was discovered that PyPDF2 incorrectly handled PDF files with certain markers. If a user or automated system were tricked into processing a […]

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Oracle Linux 9 — expat — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — expat — vulnerability — patch and remediation guide (ELSA-2022-6838)

🟠 High   ⏱ 15–60 min  Last verified: 3 December 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6838 Related CVEs: CVE-2022-40674 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Install Lighttpd on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install Lighttpd on Debian 12

Introduction How to Install Lighttpd on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 12. This tutorial […]

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NetBSD 9.4 — ImageMagick — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — ImageMagick — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2005-4601 CVE-2006-0082 CVE-2006-5456 CVE-2007-1797 CVE-2008-1096 CVE-2010-4167 CVE-2012-0247 CVE-2014-1958  +12 more Upstream summary: pkgsrc audit-packages flagged ImageMagick<6.2.6.0 for vulnerability class 'arbitrary-code-execution'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4601 Table of contents Symptom & Impact Environment […]

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How to Install Vault for Secrets Management on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Install Vault for Secrets Management on FreeBSD 14 (FREEBSD-14-2)

Introduction How to Install Vault for Secrets Management on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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Amazon Linux 2023 — libinput — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — libinput — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2023-041 Related CVEs: CVE-2022-1215 Upstream summary: A format string vulnerability was found in libinput (CVE-2022-1215) Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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How to Install Ansible on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Install Ansible on FreeBSD 14

Introduction How to Install Ansible on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, and […]

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