March 2023

Common Problems 124527

Oracle Linux 9 – Common Problem 007 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Oracle Linux 9 📖 ~3 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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openSUSE Tumbleweed — swtpm — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — swtpm — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:1101-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-23645 CVE-2020-28407 Upstream summary: swtpm is a libtpms-based TPM emulator with socket, character device, and Linux CUSE interface. Versions prior to 0.5.3, 0.6.2, and 0.7.1 […]

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Common Problems 115132

SELinux Denials Breaking Web Application Access – RHEL 8 Post 030

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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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openSUSE Tumbleweed — rtl_433 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — rtl_433 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2022-27419 Upstream summary: rtl_433 21.12 was discovered to contain a stack overflow in the function acurite_00275rm_decode at /devices/acurite.c. This vulnerability allows attackers to cause a […]

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Gentoo Linux — sys-apps/dbus — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — sys-apps/dbus — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202305-08 Related CVEs: CVE-2022-42010 CVE-2022-42011 CVE-2022-42012 CVE-2020-12049 Upstream summary: Multiple vulnerabilities have been discovered in D-Bus. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment […]

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Common Problems 111822

Windows Server 2022 — AD monitoring misses failed logon spikes during peak hours — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Windows Server 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 […]

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How to Tune System Performance with tuned on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Tune System Performance with tuned on Oracle Linux 9

Introduction Setting up tune system performance with tuned on oracle linux 9 on a Oracle Linux 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Tune System Performance with tuned on Oracle Linux 9, with all the commands you need, the SELinux and firewalld […]

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Gentoo Linux — sys-apps/dmidecode — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — sys-apps/dmidecode — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202407-26 Related CVEs: CVE-2023-30630 Upstream summary: Dmidecode -dump-bin can overwrite a local file. This has security relevance because, for example, execution of Dmidecode via sudo is plausible. Table of contents Symptom & […]

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