Ubuntu 22.04

Ubuntu 22.04 — cyrus-imapd — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — cyrus-imapd — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 31 December 2024 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7224-1 Related CVEs: CVE-2019-18928 CVE-2021-33582 CVE-2024-34055 Upstream summary: It was discovered that non-authentication-related HTTP requests could be interpreted in an authentication context by a Cyrus IMAP Server when multiple requests […]

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Common Problems 117008

Ubuntu 22.04 LTS – SSH public key auth fails with permission denied – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 28 December 2024 Affected versions: Ubuntu 22.04 LTS (Jammy) 📖 ~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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Ubuntu 22.04 — ckeditor — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — ckeditor — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 December 2024 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7258-1 Related CVEs: CVE-2022-24728 CVE-2023-28439 CVE-2024-24815 CVE-2024-24816 CVE-2024-43411 Upstream summary: Kevin Backhouse discovered that CKEditor did not properly sanitize HTML content. An attacker could possibly use this issue to perform […]

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Ubuntu 22.04 — python-virtualenv — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — python-virtualenv — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2024 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7271-1 Related CVEs: CVE-2024-53899 Upstream summary: It was discovered that virtualenv incorrectly handled paths when activating virtual environments. An attacker could possibly use this issue to execute arbitrary code. Table […]

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Ubuntu 22.04 — libsndfile — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — libsndfile — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 26 December 2024 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7273-1 Related CVEs: CVE-2021-4156 CVE-2024-50612 CVE-2022-33065 Upstream summary: It was discovered that libsndfile incorrectly handled memory when executing its FLAC codec. If a user or automated system were tricked into […]

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Common Problems 117102

Ubuntu 22.04 locale warnings in terminal

🟡 Medium   ⏱ 5–30 min  Last verified: 25 December 2024 📖 ~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 22.04 — twisted — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — twisted — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 December 2024 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6988-2 Related CVEs: CVE-2024-41671 CVE-2024-41810 CVE-2022-39348 CVE-2023-46137 CVE-2022-24801 CVE-2022-21716 Upstream summary: USN-6988-1 fixed CVE-2024-41671 in Twisted. The USN incorrectly stated that previous releases were unaffected. This update provides the equivalent […]

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Common Problems 117055

Ubuntu 22.04 LTS – PostgreSQL refuses remote connections – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 24 December 2024 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 117002

Ubuntu 22.04 SSH connection refused

🟡 Medium   ⏱ 5–30 min  Last verified: 22 December 2024 📖 ~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 117015

Ubuntu 22.04 LTS – GRUB update fails with malformed custom menu entry – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 17 December 2024 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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