Common Problems

Oracle Linux 8 — bluez — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — bluez — vulnerability — patch and remediation guide (ELSA-2020-4481)

🟡 Medium   ⏱ 10–30 min  Last verified: 9 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4481 Related CVEs: CVE-2020-0556 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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Oracle Linux 8 — kernel security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-3847)

🟡 Medium   ⏱ 10–30 min  Last verified: 8 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-3847 Related CVEs: CVE-2023-28466 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 117407

Ubuntu 20.04 Wi-Fi Adapter Not Detected

🟡 Medium   ⏱ 5–30 min  Last verified: 8 October 2020 📖 ~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 115405

RHEL 7 systemctl Service Fails With Dependency Job Error

🟠 High   ⏱ 5–30 min  Last verified: 8 October 2020 Affected versions: RHEL 7 📖 ~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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Gentoo Linux — sci-mathematics/cgal — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — sci-mathematics/cgal — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202305-34 Related CVEs: CVE-2020-28601 CVE-2020-28602 CVE-2020-28603 CVE-2020-28604 CVE-2020-28605 CVE-2020-28606 CVE-2020-28607 CVE-2020-28608  +12 more Upstream summary: Multiple vulnerabilities have been discovered in CGAL. Please review the CVE identifiers referenced below for details. Table […]

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Common Problems 113619

Windows Server 2012 R2 – Fine-grained password policy not applied to subjects – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 8 October 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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Common Problems 113491

Windows Server 2012 R2 — Server (LanmanServer) service refuses connections — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 October 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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Common Problems 113490

Windows Server 2012 R2 — Primary group SID anomaly stops member from inheriting Domain Users rights — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 October 2020 Affected versions: Windows Server 2012 R2 📖 ~2 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 […]

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Ubuntu 16.04 — coturn — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — coturn — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 October 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4690-1 Related CVEs: CVE-2020-26262 CVE-2020-4067 CVE-2020-6061 CVE-2020-6062 Upstream summary: It was discovered that coTURN allowed peers to connect and relay packets to loopback addresses in the range of 127.x.x.x. A […]

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Common Problems 112934

Windows Server 2016 — Kerberos token bloat causes logon failure for users in many groups — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 October 2020 Affected versions: Windows Server 2016 📖 ~2 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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