Logging Monitoring

Debian 11 — txt2man — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — txt2man — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-1444 Upstream summary: A certain Debian patch for txt2man 1.5.5, as used in txt2man 1.5.5-2, 1.5.5-4, and others, allows local users to overwrite arbitrary files via a symlink […]

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Ubuntu 18.04 — rsyslog — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — rsyslog — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 July 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5404-1 Related CVEs: CVE-2022-24903 Upstream summary: Pieter Agten discovered that Rsyslog incorrectly handled certain requests. An attacker could possibly use this issue to cause a crash. Table of contents Symptom […]

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openSUSE Tumbleweed — ruby3.1-rubygem-loofah — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ruby3.1-rubygem-loofah — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:15120-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-23514 CVE-2022-23516 CVE-2022-23515 Upstream summary: Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Loofah < […]

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FreeBSD 13 — opera-devel — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — opera-devel — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 30 July 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: opera — moderately severe issue Related CVEs: CVE-2004-1156 CVE-2004-1157 CVE-2004-1158 CVE-2004-1160 CVE-2004-1491 CVE-2005-0456 CVE-2005-1475 CVE-2005-1669  +12 more Upstream summary: Opera reports: Fixed a moderately severe issue, as reported by Attila […]

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How to Set Up the Elastic Stack ELK on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up the Elastic Stack ELK on Debian 11

Introduction Deploying set up the elastic stack elk on debian 11 on a Debian 11 Bullseye 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 […]

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Oracle Linux 8 — .NET Core on OL 8 security and bugfix update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET Core on OL 8 security and bugfix update

🟠 High   ⏱ 15–60 min  Last verified: 29 July 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-0793 Related CVEs: CVE-2021-26701 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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Common Problems 117070

Ubuntu 22.04 LTS MySQL Fails to Start Because AppArmor Denies Data Path

🟡 Medium   ⏱ 5–30 min  Last verified: 29 July 2022 📖 ~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 & Cross-Refs References & Further […]

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FreeBSD 13 — py37-dparse — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py37-dparse — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 July 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-dparse — REDoS vulnerability Related CVEs: CVE-2022-39280 Upstream summary: yeisonvargasf reports: dparse is a parser for Python dependency files. dparse in versions before 0.5.2 contain a regular expression that is […]

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AlmaLinux 8 — ee4j-parent — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — ee4j-parent — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4329 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 113484

Windows Server 2016 – Container host cannot pull images behind TLS-inspecting proxy – Fix & Prevention (FIX-PREVENTION-2)

🟠 High   ⏱ 5–30 min  Last verified: 29 July 2022 Affected versions: Windows Server 2016 📖 ~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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