August 2023

Oracle Linux 9 — libvirt security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — libvirt security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2022-8003)

🟢 Low   ⏱ 5–15 min  Last verified: 31 August 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-8003 Related CVEs: CVE-2022-0897 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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NetBSD 9.4 — apache6-1.3.30* — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — apache6 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged apache6 for vulnerability class 'denial-of-service'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0492 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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How to Set Up a WordPress Site on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up a WordPress Site on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying set up a wordpress site on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up a WordPress Site on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the […]

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Common Problems 120039

Debian 12: Python venv packages missing after deploy

🟡 Medium   ⏱ 5–30 min  Last verified: 31 August 2023 Affected versions: Debian 12 📖 ~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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Debian 12 — lucene-solr — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — lucene-solr — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 31 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-6612 CVE-2013-6397 CVE-2013-6407 CVE-2013-6408 CVE-2017-12629 CVE-2017-3163 CVE-2017-3164 CVE-2018-1308  +9 more Upstream summary: The (1) UpdateRequestHandler for XSLT or (2) XPathEntityProcessor in Apache Solr before 4.1 allows remote attackers […]

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NetBSD 9.4 — tor-browser — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — tor-browser — multiple vulnerabilities (4 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-2018-16983 CVE-2017-16541 CVE-2019-12383 CVE-2019-13075 Upstream summary: pkgsrc audit-packages flagged tor-browser<8.0 for vulnerability class 'unspecified'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-16983 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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Common Problems 114572

Firewalld Rich Rule Order Producing Unexpected Drops

🟡 Medium   ⏱ 5–30 min  Last verified: 31 August 2023 📖 ~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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NetBSD 9.4 — py27-gnupg — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — py27-gnupg — 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-2019-6690 Upstream summary: pkgsrc audit-packages flagged py27-gnupg<0.4.4 for vulnerability class 'input-validation'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2019-6690 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Debian 12 — eyed3 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — eyed3 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-1934 Upstream summary: tag.py in eyeD3 (aka python-eyed3) 7.0.3, 0.6.18, and earlier for Python allows local users to modify arbitrary files via a symlink attack on a temporary […]

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Common Problems 117539

Ubuntu 20.04 webcam not detected in video apps

🟡 Medium   ⏱ 5–30 min  Last verified: 31 August 2023 📖 ~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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