Common Problems

Debian 10 — qtbase-opensource-src — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — qtbase-opensource-src — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 February 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-18281 CVE-2020-0569 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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Debian 10 — qemu — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — qemu — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 February 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-12068 CVE-2019-13164 CVE-2019-15890 CVE-2020-10756 CVE-2020-12829 CVE-2020-8608 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Oracle Linux 8 — BTRFS File System Not Supported on RHCK — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — BTRFS File System Not Supported on RHCK

🟠 High   ⏱ 5–30 min  Last verified: 4 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug OLRNT-ol8-issues-btrfssupport 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 […]

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Common Problems 118968

Ubuntu 14.04 LTS NTP Drift Causes TLS and Authentication Failures

🟡 Medium   ⏱ 5–30 min  Last verified: 4 February 2021 📖 ~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 118049

Ubuntu 18.04 LTS MySQL Refuses to Start After Crash Recovery

🟠 High   ⏱ 5–30 min  Last verified: 4 February 2021 Affected versions: 18.04 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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Arch Linux — unbound — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — unbound — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202005-14 Related CVEs: CVE-2020-12663 CVE-2020-12662 CVE-2019-16866 CVE-2020-28935 Upstream summary: Type: denial of service. Status: Fixed. Affected: 1.10.0-2. Fixed in: 1.10.1-1. Group: AVG-1164. Table of contents Symptom & Impact Environment & […]

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Ubuntu 20.04 — apt — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — apt — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 February 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4667-1 Related CVEs: CVE-2020-27350 CVE-2020-3810 Upstream summary: Kevin Backhouse discovered that APT incorrectly handled certain packages. A local attacker could possibly use this issue to cause APT to crash or […]

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Ubuntu 18.04 — phpliteadmin — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — phpliteadmin — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 February 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5552-1 Related CVEs: CVE-2021-46709 Upstream summary: It was discovered that phpLiteAdmin incorrectly handled certain GET requests. An attacker could possibly use this issue to perform cross-site scripting (XSS) attacks. Table […]

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Gentoo Linux — www-apps/zeppelin-bin — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — www-apps/zeppelin-bin — multiple vulnerabilities (3 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-202311-04 Related CVEs: CVE-2019-10095 CVE-2020-13929 CVE-2021-27578 Upstream summary: Multiple vulnerabilities have been discovered in Zeppelin. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & […]

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

Oracle Linux 8 — rpm — vulnerability — patch and remediation guide (ELSA-2022-0368)

🟡 Medium   ⏱ 10–30 min  Last verified: 4 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-0368 Related CVEs: CVE-2021-3521 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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