Common Problems

Ubuntu 20.04 — connman — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — connman — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 November 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6236-1 Related CVEs: CVE-2021-26675 CVE-2021-26676 CVE-2021-33833 CVE-2022-23096 CVE-2022-23097 CVE-2022-23098 CVE-2022-32292 CVE-2022-32293  +1 more Upstream summary: It was discovered that ConnMan could be made to write out of bounds. A remote […]

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Common Problems 118623

Ubuntu 16.04 LTS OpenSSL mismatch breaks legacy application startup

🟠 High   ⏱ 5–30 min  Last verified: 9 November 2022 Affected versions: 16.04 📖 ~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 […]

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Common Problems 116923

Ubuntu 22.04 LTS – DNS resolution fails with systemd-resolved stub issues – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 9 November 2022 Affected versions: Ubuntu 22.04 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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Common Problems 115502

Systemd unit fails with dependency errors

🟡 Medium   ⏱ 5–30 min  Last verified: 9 November 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 & Cross-Refs References & Further […]

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Common Problems 113542

Windows Server 2012 R2 VSS Snapshot Failures Due to Low Shadow Copy Storage – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 9 November 2022 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 111725

Windows Server 2022 Failover Cluster Quorum Lost After Node Maintenance – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 9 November 2022 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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IBM AIX 7.1 — CVE-2022-22496 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2022-22496 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 9 November 2022 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2022-22496, IBM Support Bulletin CVE: CVE-2022-22496 NVD summary: While a user account for the IBM Spectrum Protect Server 8.1.0.000 through 8.1.14 is being established, it may be configured to use SESSIONSECURITY=TRANSITIONAL. While […]

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AlmaLinux 9 — mingw-pixman — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — mingw-pixman — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2024:2525 Related CVEs: CVE-2022-44638 Upstream summary: Pixman is a pixel manipulation library for the X Window System and Cairo. Security Fix(es): * pixman: Integer overflow in pixman_sample_floor_y leading to heap out-of-bounds write […]

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Debian 11 — mlmmj — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — mlmmj — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-4896 Upstream summary: Multiple directory traversal vulnerabilities in the mlmmj-php-admin web interface for Mailing List Managing Made Joyful (mlmmj) 1.2.15 through 1.2.17 allow remote authenticated users to overwrite, […]

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