ubuntu

Common Problems 116587

Ubuntu 24.04 LTS – netplan misconfiguration causes no network – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 28 November 2024 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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Ubuntu 16.04 — subversion — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — subversion — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 November 2024 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7818-1 Related CVEs: CVE-2024-46901 CVE-2020-17525 CVE-2018-11782 CVE-2019-0203 CVE-2016-2167 CVE-2016-8734 CVE-2017-9800 Upstream summary: It was discovered that Apache Subversion incorrectly parsed control characters in filenames. An attacker could possibly use this […]

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Common Problems 116547

Ubuntu 24.04 LTS – root filesystem full due to journal growth – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 26 November 2024 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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Common Problems 116539

Ubuntu 24.04 LTS Timeshift Restore Leaves Broken Package States

🟡 Medium   ⏱ 5–30 min  Last verified: 26 November 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 116417

Ubuntu 24.04 LTS – apt update fails with missing GPG key – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 26 November 2024 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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Ubuntu 24.04 — amavisd-new — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — amavisd-new — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 November 2024 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6790-1 Related CVEs: CVE-2024-28054 Upstream summary: It was discovered that amavisd-new incorrectly handled certain MIME email messages with multiple boundary parameters. A remote attacker could possibly use this issue to […]

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Ubuntu 22.04 — libgsf — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — libgsf — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 November 2024 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7062-1 Related CVEs: CVE-2024-36474 CVE-2024-42415 Upstream summary: It was discovered that libgsf incorrectly handled certain Compound Document Binary files. If a user or automated system were tricked into opening a […]

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Common Problems 116516

Ubuntu 24.04 LTS – Root filesystem full under /var – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 25 November 2024 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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Ubuntu 22.04 — util-linux — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — util-linux — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 November 2024 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8091-1 Related CVEs: https://launchpad.net/bugs/2143850 CVE-2024-28085 Upstream summary: It was discovered that the util-linux su utility did not drop capabilities when being used with the –pty option. While not a security […]

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How to Secure Nginx with Let's Encrypt SSL on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Apache on Ubuntu 24.04

Apache HTTP Server is one of the most popular web servers in the world. This guide installs and starts Apache on Ubuntu 24.04 LTS and verifies that it is serving content correctly. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges UFW firewall configured Step 1 – […]

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