Ubuntu 24.04

Common Problems 116453

Ubuntu 24.04 LTS – netplan apply causes immediate network connectivity loss

🟠 High   ⏱ 5–30 min  Last verified: 21 August 2024 Affected versions: Ubuntu 24.04 LTS Ubuntu 24.04 Ubuntu 24.04.1 📖 ~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 […]

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

Ubuntu 24.04 — keystone — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 August 2024 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7857-1 Related CVEs: https://launchpad.net/bugs/2130629 Upstream summary: Kay discovered that OpenStack Keystone incorrectly handled the ec2tokens and s3tokens APIs. A remote attacker could possibly use this issue to obtain unauthorized access […]

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Ubuntu 24.04 — ledgersmb — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — ledgersmb — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 16 August 2024 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7647-1 Related CVEs: CVE-2021-3693 CVE-2021-3731 CVE-2024-23831 CVE-2021-3882 CVE-2021-3694 Upstream summary: It was discovered that LedgerSMB did not check the origin of HTML fragments. An attacker could possibly use this issue […]

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How to Install and Configure Xdebug 3 for PHP 8.3 on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install and Configure Xdebug 3 for PHP 8.3 on Ubuntu 24.04

Xdebug 3 is the essential debugging extension for PHP. It enables step-by-step debugging, code coverage analysis, and profiling. This guide installs Xdebug 3 for PHP 8.3 on Ubuntu 24.04 LTS and configures it for use with VS Code. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server or desktop PHP 8.3 installed […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 12 August 2024 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7660-1 Related CVEs: CVE-2023-34823 CVE-2022-37781 CVE-2022-36148 CVE-2023-34824 Upstream summary: It was discovered that fdkaac did not correctly handle certain input. If a user or automated system were tricked into opening […]

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Common Problems 116616

Ubuntu 24.04 LTS – SMB mount fails with authentication errors – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 10 August 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 116520

Ubuntu 24.04 LTS – UFW blocks expected service traffic – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 10 August 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 116519

Ubuntu 24.04 LTS initramfs BusyBox Drop Caused by UUID Mismatch

🟡 Medium   ⏱ 5–30 min  Last verified: 10 August 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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How to Secure Nginx with Let's Encrypt SSL on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install a LEMP Stack on Ubuntu 24.04

The LEMP stack — Linux, Nginx, MySQL, and PHP — is a popular combination for hosting dynamic web applications. This guide installs and integrates all four components on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges UFW firewall configured Step 1 – Install […]

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Ubuntu 24.04 — golang-1.21 — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — golang-1.21 — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 August 2024 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6886-1 Related CVEs: CVE-2023-45288 CVE-2023-45289 CVE-2023-45290 CVE-2024-24783 CVE-2024-24784 CVE-2024-24785 CVE-2024-24788 CVE-2024-24789  +1 more Upstream summary: It was discovered that the Go net/http module did not properly handle the requests when […]

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