ubuntu

Ubuntu 18.04 — sqlite3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — sqlite3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 June 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7679-1 Related CVEs: CVE-2025-6965 CVE-2025-29088 CVE-2023-7104 CVE-2022-35737 CVE-2020-35525 CVE-2020-35527 CVE-2021-20223 CVE-2021-36690  +12 more Upstream summary: It was discovered that SQLite incorrectly handled aggregate terms. An attacker could use this issue […]

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Ubuntu 22.04 — libjson-xs-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — libjson-xs-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 June 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7750-1 Related CVEs: CVE-2025-40928 Upstream summary: It was discovered that JSON-XS incorrectly handled parsing certain JSON data. An attacker could possibly use this issue to cause JSON-XS to crash, resulting […]

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Common Problems 116125

Ubuntu 26.04 LTS – systemd service enters restart loop from bad ExecStart – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 10 June 2026 Affected versions: Ubuntu 26.04 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 115939

Ubuntu 26.04 LTS – cloud-init overwrites custom netplan configuration on reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 9 June 2026 Affected versions: Ubuntu 26.04 LTS Ubuntu 26.04 Ubuntu 26.04.1 📖 ~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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Common Problems 116009

Ubuntu 26.04 LTS – NVIDIA driver update results in black screen after login

🟠 High   ⏱ 5–30 min  Last verified: 9 June 2026 Affected versions: Ubuntu 26.04 LTS Ubuntu 26.04 Ubuntu 26.04.1 📖 ~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 22.04 — squid — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — squid — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 9 June 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8157-1 Related CVEs: CVE-2026-33526 CVE-2026-33515 CVE-2026-32748 CVE-2025-62168 CVE-2025-59362 CVE-2024-37894 CVE-2023-49288 CVE-2023-5824  +12 more Upstream summary: It was discovered that Squid incorrectly handled certain ICP traffic. In environments where ICP support […]

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Ubuntu 18.04 — exiv2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — exiv2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 9 June 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8103-1 Related CVEs: CVE-2026-27596 CVE-2026-25884 CVE-2020-18899 CVE-2025-55304 CVE-2025-54080 CVE-2026-27631 CVE-2020-18771 CVE-2021-32815  +12 more Upstream summary: It was discovered that Exiv2 did not correctly handle reading certain buffers. An attacker could […]

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Ubuntu 14.04 — python-setuptools — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — python-setuptools — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 June 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7544-1 Related CVEs: CVE-2025-47273 CVE-2024-6345 CVE-2022-40897 Upstream summary: It was discovered that setuptools did not properly sanitize paths. An attacker could possibly use this issue to write files to arbitrary […]

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Ubuntu 22.04 — openjdk-17 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — openjdk-17 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 9 June 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7998-1 Related CVEs: CVE-2026-21932 CVE-2026-21933 CVE-2026-21925 CVE-2026-21945 CVE-2025-53057 CVE-2025-53066 CVE-2025-50106 CVE-2025-30754  +12 more Upstream summary: It was discovered that the RMI component of OpenJDK 17 would establish RMI TCP endpoint […]

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Common Problems 116114

Ubuntu 26.04 LTS – Bluetooth adapter disappears after suspend-resume cycle – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 9 June 2026 Affected versions: Ubuntu 26.04 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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