Operations

Gentoo Linux — sys-apps/dbus-broker — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — sys-apps/dbus-broker — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202305-04 Related CVEs: CVE-2022-31212 CVE-2022-31213 Upstream summary: Multiple vulnerabilities have been discovered in dbus-broker. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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Initial Server Setup with SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

Initial Server Setup with SLES 15

Introduction This tutorial covers Initial Server Setup with SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites A fresh SLES 15 installation with root or sudo access is required. Ensure […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 8 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-3761 CVE-2021-3907 CVE-2021-3908 CVE-2021-3909 CVE-2021-3910 CVE-2021-3911 CVE-2021-3912 CVE-2021-3978  +3 more Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – […]

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

Oracle Linux 9 — libtiff — vulnerability — patch and remediation guide (ELSA-2023-0302)

🟡 Medium   ⏱ 10–30 min  Last verified: 8 October 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0302 Related CVEs: CVE-2022-2057 CVE-2022-2521 CVE-2022-2519 CVE-2022-2056 CVE-2022-2520 CVE-2022-2953 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 13 — linux-seamonkey — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — linux-seamonkey — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 8 October 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mozilla — multiple vulnerabilities Related CVEs: CVE-2006-0749 CVE-2006-1045 CVE-2006-1529 CVE-2006-1530 CVE-2006-1531 CVE-2006-1723 CVE-2006-1724 CVE-2006-1725  +12 more Upstream summary: Mozilla Foundation reports: CVE-2019-11751: Malicious code execution through command line parameters CVE-2019-11746: […]

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How to Install Netdata Monitoring on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install Netdata Monitoring on Debian 11

Introduction This guide explains how to Install Netdata Monitoring on Debian 11 on Debian 11 Bullseye. Debian Bullseye 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 11 install with the standard […]

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Common Problems 120682

Debian 11 – Fail2ban Not Banning with nftables Backend – Jail Action Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 7 October 2022 Affected versions: Debian 11 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]

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Common Problems 116999

Ubuntu 22.04 LTS – root filesystem is 100% and services become unstable

🔴 Critical   ⏱ 5–30 min  Last verified: 7 October 2022 Affected versions: Ubuntu 22.04 LTS Ubuntu 22.04 Ubuntu 22.04.4 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention […]

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FreeBSD 13 — libmysofa — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — libmysofa — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 October 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libmysoft — Heap-based buffer overflow vulnerability Related CVEs: CVE-2021-3756 Upstream summary: Zhengjie Du reports: There are some heap-buffer-overflows in mysofa2json of libmysofa. They are in function loudness, mysofa_check and readOHDRHeaderMessageDataLayout. […]

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