Linux

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2022-9480)

🟠 High   ⏱ 15–60 min  Last verified: 4 March 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9480 Related CVEs: CVE-2021-4197 CVE-2022-23041 CVE-2022-1353 CVE-2022-1048 CVE-2022-23040 CVE-2022-23042 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Einrichten eines NFS Mount auf Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Einrichten eines NFS Mount auf Ubuntu 20.04

NFS oder Network File System ist ein verteiltes Dateisystem, das es Ihnen ermöglicht, remote Verzeichnisse auf Ihrem Server bereitzustellen. Auf diese Weise können Sie Speicherplatz an einem anderen Ort verwalten und in diesen Speicherplatz aus mehreren Clients schreiben. NFS…

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Oracle Linux 9 — .NET 7.0 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — .NET 7.0 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-4057)

🟠 High   ⏱ 15–60 min  Last verified: 3 March 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-4057 Related CVEs: CVE-2023-33170 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 118983

Ubuntu 14.04 LTS LightDM login loop on desktop

🟡 Medium   ⏱ 5–30 min  Last verified: 3 March 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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Common Problems 117436

Ubuntu 20.04 LTS – netplan apply fails due to YAML indentation errors – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 3 March 2023 Affected versions: Ubuntu 20.04 LTS 📖 ~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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Alpine Linux edge — opusfile — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — opusfile — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.12-r4 📖 ~4 min read  •  Source: Alpine secdb entry — opusfile 0.12-r4 Related CVEs: CVE-2022-47021 Upstream summary: Alpine main repository for vedge ships opusfile 0.12-r4 which addresses CVE-2022-47021. Table of contents Symptom & Impact Environment […]

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Ubuntu 18.04 — w3m — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — w3m — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 March 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6580-1 Related CVEs: CVE-2023-4255 CVE-2022-38223 Upstream summary: It was discovered that w3m incorrectly handled certain HTML files. An attacker could possibly use this issue to cause a crash or execute […]

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CentOS Stream 9 — doxygen — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — doxygen — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 March 2023 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2025:1329 Related CVEs: CVE-2020-11023 Upstream summary: Doxygen can generate an online class browser (in HTML) and/or a reference manual (in LaTeX) from a set of documented source files. The documentation is […]

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

Oracle Linux 9 — curl — vulnerability — patch and remediation guide (ELSA-2023-4354)

🟡 Medium   ⏱ 10–30 min  Last verified: 3 March 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-4354 Related CVEs: CVE-2023-28321 CVE-2023-28322 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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