🟡 Medium ⏱ 10–30 min Last verified: 30 December 2024 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6744-2 Related CVEs: CVE-2024-28219 CVE-2022-24303 CVE-2022-45198 Upstream summary: USN-6744-1 fixed a vulnerability in Pillow (Python 3). This update provides the corresponding updates for Pillow (Python 2) in Ubuntu 20.04 LTS. […]
BIND9 is the most widely deployed DNS server software. This guide configures BIND9 as an authoritative DNS server and a local recursive resolver on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges A registered domain name (for authoritative DNS) Step 1 – Install […]
Composer is the dependency manager for PHP. It allows you to declare project libraries, resolve version conflicts, and install them automatically. This guide installs Composer globally on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server PHP 8.3 installed A user with sudo privileges Step 1 – Install Required […]
🟡 Medium ⏱ 10–30 min Last verified: 29 December 2024 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7115-1 Related CVEs: CVE-2024-49768 CVE-2024-49769 CVE-2022-24761 Upstream summary: It was discovered that Waitress could process follow up requests when receiving a specially crafted message. An attacker could use this issue […]
🟠 High ⏱ 15–60 min Last verified: 29 December 2024 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7225-1 Related CVEs: CVE-2022-0137 CVE-2022-0534 CVE-2022-24191 CVE-2022-27114 CVE-2022-28085 CVE-2022-34033 CVE-2022-34035 CVE-2024-45508 +12 more Upstream summary: It was discovered that HTMLDOC incorrectly handled memory in the image_set_mask, git_read_lzw, write_header and write_node […]
🟡 Medium ⏱ 5–30 min Last verified: 28 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 […]
🟠 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 […]
🟠 High ⏱ 5–30 min Last verified: 28 December 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 […]
🟠 High ⏱ 15–60 min Last verified: 28 December 2024 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7894-2 Related CVEs: https://launchpad.net/bugs/2133157 CVE-2024-9143 CVE-2024-4741 CVE-2023-0464 CVE-2024-6119 CVE-2024-13176 CVE-2023-2650 CVE-2024-0727 +12 more Upstream summary: USN-7894-1 fixed vulnerabilities in EDK II. The update introduced a regression in the UEFI network […]
SSH is the primary remote access method for Linux servers and is a common target for brute-force attacks. This guide walks through SSH hardening best practices on Ubuntu 24.04 LTS to significantly reduce your attack surface. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server SSH key-based authentication already configured A user […]
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