ubuntu

Ubuntu 20.04 — libndp — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libndp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 July 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6830-1 Related CVEs: CVE-2024-5564 Upstream summary: It was discovered that libndp incorrectly handled certain malformed IPv6 router advertisement packets. A local attacker could use this issue to cause NetworkManager to […]

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Ubuntu 18.04 — uriparser — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — uriparser — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 4 July 2025 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7356-1 Related CVEs: CVE-2024-34402 CVE-2024-34403 CVE-2021-46141 CVE-2021-46142 CVE-2018-19198 CVE-2018-19199 CVE-2018-19200 CVE-2018-20721 Upstream summary: It was discovered that uriparser did not correctly handle certain inputs, which could lead to an integer […]

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Ubuntu 24.04 — nasm — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — nasm — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 July 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8248-2 Related CVEs: CVE-2021-33450 CVE-2021-33452 https://launchpad.net/bugs/2151861 CVE-2023-31722 Upstream summary: USN-8248-1 fixed vulnerabilities in NASM. Unfortunately the update introduced a regression which could cause NASM to crash. This update fixes the […]

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Common Problems 116528

Ubuntu 24.04 LTS /var Filesystem Full and Package Operations Fail

🔴 Critical   ⏱ 5–30 min  Last verified: 2 July 2025 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 116415

Ubuntu 24.04 LTS – DNS resolution fails with systemd-resolved – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 2 July 2025 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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How to Configure a Static IP Address with Netplan on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install and Configure Postfix Mail Server on Ubuntu 24.04

Postfix is a popular, high-performance Mail Transfer Agent (MTA) that routes and delivers email. This guide installs and configures Postfix as an outgoing SMTP server on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A registered domain name DNS MX records pointing to your server A user with […]

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How to Manage Docker Images and Containers on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Docker Engine on Ubuntu 24.04

Docker Engine allows you to build, run, and manage containerised applications. This guide installs the latest Docker Engine (25.x) on Ubuntu 24.04 LTS using the official Docker repository. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges Step 1 – Remove Old Docker Versions Remove any unofficial […]

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Ubuntu 24.04 — libsndfile — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — libsndfile — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 June 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7267-2 Related CVEs: CVE-2024-50612 Upstream summary: USN-7267-1 fixed a vulnerability in libsndfile. This update provides the corresponding updates for Ubuntu 24.04 LTS and Ubuntu 24.10. Original advisory details: It was […]

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Common Problems 116617

Ubuntu 24.04 LTS – locale warnings break scripts and package tasks – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 27 June 2025 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 18.04 — nano — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — nano — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 June 2025 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7064-1 Related CVEs: CVE-2024-5742 Upstream summary: It was discovered that nano allowed a possible privilege escalation through an insecure temporary file. If nano was killed while editing, the permissions granted […]

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