ubuntu

Common Problems 117579

Ubuntu 20.04 GRUB menu missing after update

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 📖 ~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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Ubuntu 16.04 — linux-aws — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — linux-aws — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8274-1 Related CVEs: CVE-2022-49033 CVE-2024-27388 CVE-2024-49938 CVE-2024-50008 CVE-2024-50142 CVE-2021-47142 CVE-2021-47145 CVE-2021-47254  +12 more Upstream summary: Several security issues were discovered in the Linux kernel. An attacker could possibly use these […]

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Ubuntu 14.04 — glib2.0 — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — glib2.0 — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7942-2 Related CVEs: CVE-2025-3360 CVE-2025-13601 CVE-2025-7039 CVE-2025-14087 CVE-2023-29499 CVE-2023-32611 CVE-2023-32636 CVE-2023-32643  +7 more Upstream summary: USN-7942-1 fixed vulnerabilities in GLib. This update provides the corresponding updates for Ubuntu 14.04 LTS, […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8263-1 Related CVEs: CVE-2026-25796 CVE-2026-25797 CVE-2026-24484 CVE-2026-25637 CVE-2026-25576 CVE-2026-25798 CVE-2026-24481 CVE-2026-25898  +12 more Upstream summary: It was discovered that ImageMagick incorrectly handled certain malformed image files in certain instances. If […]

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Ubuntu 14.04 — tiff — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — tiff — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8113-1 Related CVEs: CVE-2025-61144 CVE-2025-61143 CVE-2025-8961 CVE-2025-9165 CVE-2025-9900 CVE-2025-8177 CVE-2025-8851 CVE-2025-8534  +12 more Upstream summary: It was discovered that LibTIFF did not properly handle memory when processing certain images. An […]

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

Ubuntu 16.04 — linux-kvm — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8274-1 Related CVEs: CVE-2022-49033 CVE-2024-27388 CVE-2024-49938 CVE-2024-50008 CVE-2024-50142 CVE-2021-47142 CVE-2021-47145 CVE-2021-47254  +12 more Upstream summary: Several security issues were discovered in the Linux kernel. An attacker could possibly use these […]

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Ubuntu 14.04 — ruby-rack — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — ruby-rack — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8182-1 Related CVEs: CVE-2026-34785 CVE-2026-26962 CVE-2026-26961 CVE-2026-34230 CVE-2026-34830 CVE-2026-34763 CVE-2026-34827 CVE-2026-32762  +12 more Upstream summary: Andrew Lacambra discovered that Rack did not properly parse certain regular expressions. An attacker could […]

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Ubuntu 14.04 — libxml2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — libxml2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7974-1 Related CVEs: CVE-2026-0992 CVE-2026-0990 CVE-2025-8732 CVE-2026-0989 CVE-2025-32414 CVE-2025-7425 CVE-2025-32415 CVE-2025-9714  +12 more Upstream summary: It was discovered that libxml2 incorrectly handled maliciously crafted SGML catalog files. An attacker could […]

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Ubuntu 14.04 — net-snmp — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — net-snmp — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7944-1 Related CVEs: CVE-2025-68615 CVE-2022-24805 CVE-2022-24806 CVE-2022-24807 CVE-2022-24808 CVE-2022-24809 CVE-2022-24810 CVE-2022-44792  +7 more Upstream summary: Bahae Bahrini discovered that Net-SNMP could be made to write out of bounds. If a […]

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Ubuntu 16.04 — avahi — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — avahi — multiple vulnerabilities (14 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8269-1 Related CVEs: CVE-2026-24401 CVE-2026-34933 CVE-2025-68276 CVE-2025-68468 CVE-2025-68471 CVE-2023-38469 CVE-2023-38470 CVE-2023-38471  +6 more Upstream summary: It is discovered that Avahi incorrectly handled crafted input. A remote attacker could possibly use […]

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