Linux

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

Oracle Linux 9 — dbus — vulnerability — patch and remediation guide (ELSA-2023-0335)

🟡 Medium   ⏱ 10–30 min  Last verified: 1 September 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0335 Related CVEs: CVE-2022-42011 CVE-2022-42012 CVE-2022-42010 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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How to Apply CIS Benchmark Hardening to Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Apply CIS Benchmark Hardening to Debian 12

Introduction This guide explains how to Apply CIS Benchmark Hardening to 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 the […]

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openSUSE Leap 15.5 — libvmtools0 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — libvmtools0 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2023:4227-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-34058 CVE-2023-34059 CVE-2023-20900 CVE-2023-20867 Upstream summary: VMware Tools contains a SAML token signature bypass vulnerability. A malicious actor that has been granted Guest Operation […]

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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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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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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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