Common Problems

Common Problems 117524

Ubuntu 20.04 LTS Nginx Fails to Start Due to Port 80 Conflict

🟡 Medium   ⏱ 5–30 min  Last verified: 16 May 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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FreeBSD 12 — foreman-proxy — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — foreman-proxy — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: foreman-proxy SSL verification issue Related CVEs: CVE-2014-3691 Upstream summary: Foreman Security reports: The smart proxy when running in an SSL-secured mode permits incoming API calls to any endpoint without requiring, […]

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Common Problems 115554

crond Service Not Running Scheduled Jobs

🟡 Medium   ⏱ 5–30 min  Last verified: 16 May 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 112392

Windows Server 2019 – Hyper-V live migration fails with authentication errors – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 16 May 2020 Affected versions: Windows Server 2019 📖 ~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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FreeBSD 12 — nextcloud — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — nextcloud — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Nextcloud — Password share by mail not hashed Related CVEs: CVE-2020-8183 Upstream summary: The Nextcloud project reports: NC-SA-2020-026 (low): Password of share by mail is not hashed when given on […]

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Debian 10 — mariadb-10.3 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — mariadb-10.3 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 May 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-15180 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 — edk2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — edk2 — vulnerability — patch and remediation guide (ELSA-2019-0968)

🟠 High   ⏱ 15–60 min  Last verified: 16 May 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-0968 Related CVEs: CVE-2018-12180 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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FreeBSD 12 — qemu-devel — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — qemu-devel — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 16 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: qemu — denial of service vulnerability Related CVEs: CVE-2007-1320 CVE-2007-1321 CVE-2007-1322 CVE-2007-1323 CVE-2007-1366 CVE-2007-6227 CVE-2008-0928 CVE-2008-2004  +12 more Upstream summary: Daniel P. Berrange reports: The VNC server websockets decoder will […]

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Debian 10 — ansible — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — ansible — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 May 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-10156 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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