ubuntu

Ubuntu 18.04 — gst-plugins-base1.0 — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — gst-plugins-base1.0 — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 22 September 2025 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7827-1 Related CVEs: CVE-2025-47808 CVE-2025-47806 CVE-2025-47807 CVE-2024-47542 CVE-2023-37328 CVE-2024-47615 CVE-2024-47538 CVE-2024-47607  +7 more Upstream summary: Shaun Mirani discovered that GStreamer Base Plugins did not correctly handle certain memory operations. An […]

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Common Problems 116566

Ubuntu 24.04 LTS – Time drift breaks TLS and package updates – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 21 September 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 116467

Ubuntu 24.04 LTS – snap install fails because snapd cannot reach store – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 21 September 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 116463

Ubuntu 24.04 LTS – systemd-resolved returns intermittent DNS failures

🟠 High   ⏱ 5–30 min  Last verified: 21 September 2025 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 18.04 — modsecurity-apache — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — modsecurity-apache — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 21 September 2025 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7567-1 Related CVEs: CVE-2025-47947 CVE-2025-48866 CVE-2021-42717 CVE-2022-48279 CVE-2023-24021 Upstream summary: Simon Studer discovered that ModSecurity incorrectly handled certain JSON objects. An attacker could possibly use this issue to cause a […]

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Ubuntu 16.04 — samba — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — samba — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 21 September 2025 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7826-2 Related CVEs: CVE-2025-9640 CVE-2025-10230 https://launchpad.net/bugs/2115450 CVE-2022-3437 CVE-2022-42898 CVE-2022-45141 CVE-2023-34966 CVE-2021-44142  +12 more Upstream summary: USN-7826-1 fixed vulnerabilities in Samba. This update provides the corresponding update for Ubuntu 14.04 LTS, […]

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Ubuntu 22.04 — linux-xilinx-zynqmp — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — linux-xilinx-zynqmp — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 20 September 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8275-1 Related CVEs: CVE-2023-2640 CVE-2023-32629 CVE-2023-53421 CVE-2023-53520 CVE-2023-53662 CVE-2023-54207 CVE-2025-38057 CVE-2025-38125  +12 more Upstream summary: Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux […]

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Common Problems 116470

Ubuntu 24.04 LTS – Secure Boot blocks third-party kernel modules – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 September 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 Secure Nginx with Let's Encrypt SSL on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Configure Nginx Server Blocks (Virtual Hosts) on Ubuntu 24.04

Nginx server blocks (the equivalent of Apache virtual hosts) let you host multiple websites on a single server. This guide creates a server block for a custom domain on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Nginx installed A domain name pointed to your server’s IP Step […]

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Ubuntu 24.04 — libvirt — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — libvirt — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 September 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6763-1 Related CVEs: CVE-2024-4418 CVE-2024-1441 CVE-2024-2494 Upstream summary: Martin Širokov discovered that libvirt incorrectly handled certain memory operations. A local attacker could possibly use this issue to access virtproxyd without […]

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