Common Problems

Common Problems 115012

RHEL 8 systemd Service Enters Restart Loop After Configuration Change

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: 8.6 8.7 8.8 8.9 8.10 📖 ~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 […]

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FreeBSD 13 — linux-flock — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — linux-flock — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mozilla — multiple vulnerabilities Related CVEs: CVE-2007-4879 CVE-2007-5959 CVE-2008-0016 CVE-2008-0412 CVE-2008-0413 CVE-2008-0414 CVE-2008-0415 CVE-2008-0417  +12 more Upstream summary: The Mozilla Foundation reports: MFSA 2008-37 UTF-8 URL stack buffer overflow MFSA […]

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Common Problems 115518

RHEL 7 NTP Drift Causes Yum TLS Certificate Errors

🟡 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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FreeBSD 12 — mariadb106-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — mariadb106-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: MariaDB — Multiple vulnerabilities Related CVEs: CVE-2018-25032 CVE-2021-46669 CVE-2022-27376 CVE-2022-27377 CVE-2022-27378 CVE-2022-27379 CVE-2022-27380 CVE-2022-27381  +12 more Upstream summary: The MariaDB project reports: See linked CVE's for details. Table of contents […]

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Common Problems 116027

Ubuntu 26.04 LTS – unattended-upgrades holds apt lock during maintenance – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 26.04 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 124081

Oracle Linux 10 – chronyd not syncing time due to firewall and SELinux policy mismatch – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Oracle Linux 10 📖 ~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 116523

Ubuntu 24.04 LTS – Microphone not detected in conferencing apps – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 24.04 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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Oracle Linux 9 — .NET 8.0 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — .NET 8.0 — vulnerability — patch and remediation guide (ELSA-2024-0848)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-0848 Related CVEs: CVE-2024-21386 CVE-2024-21404 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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NetBSD 10.0 — fluent-bit — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — fluent-bit — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2021-46878 CVE-2024-26455 CVE-2025-12970 CVE-2021-27186 CVE-2021-36088 CVE-2021-46879 CVE-2024-23722 CVE-2025-12969  +7 more Upstream summary: pkgsrc audit-packages flagged fluent-bit<1.8.0 for vulnerability class 'use-after-free'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-46878 Table of contents Symptom & Impact Environment […]

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NetBSD 10.0 — fluidsynth — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — fluidsynth — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2021-28421 CVE-2021-21417 CVE-2025-68617 CVE-2025-56225 Upstream summary: pkgsrc audit-packages flagged fluidsynth<2.1.8 for vulnerability class 'use-after-free'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-28421 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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