Ubuntu 20.04

Common Problems 117394

Ubuntu 20.04 LTS APT Lock Error Blocks Package Updates

🟡 Medium   ⏱ 5–30 min  Last verified: 21 April 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 117479

Ubuntu 20.04 NVIDIA driver install or upgrade issues

🟡 Medium   ⏱ 5–30 min  Last verified: 20 April 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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Ubuntu 20.04 — ca-certificates — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — ca-certificates — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 April 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7034-1 Related CVEs: https://launchpad.net/bugs/2081875 https://launchpad.net/bugs/2020089 https://launchpad.net/bugs/1998785 https://launchpad.net/bugs/1976631 https://launchpad.net/bugs/1944481 https://launchpad.net/bugs/1914064 https://launchpad.net/bugs/1900727 https://launchpad.net/bugs/1881533 Upstream summary: The ca-certificates package contained outdated CA certificates. This update refreshes the included certificates to those contained in […]

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Common Problems 117556

Ubuntu 20.04 Pip SSL Certificate Verification Errors

🟡 Medium   ⏱ 5–30 min  Last verified: 16 April 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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Ubuntu 20.04 — velocity-tools — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — velocity-tools — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 April 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6282-1 Related CVEs: CVE-2020-13959 Upstream summary: Jackson Henry discovered that Velocity Tools incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted […]

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