Ubuntu 18.04

Common Problems 118044

Ubuntu 18.04 broken package dependencies after upgrade

🟡 Medium   ⏱ 5–30 min  Last verified: 19 February 2021 📖 ~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 18.04 — mariadb-10.1 — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — mariadb-10.1 — multiple vulnerabilities (18 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 18 February 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4944-1 Related CVEs: https://launchpad.net/bugs/1926926 CVE-2020-13249 CVE-2020-15180 CVE-2020-2752 CVE-2020-2760 CVE-2020-2812 CVE-2020-2814 CVE-2020-2574  +10 more Upstream summary: This update fixed multiple vulnerabilities in MariaDB. Ubuntu 18.04 LTS has been updated to MariaDB […]

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Ubuntu 18.04 — hivex — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — hivex — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 February 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5148-1 Related CVEs: CVE-2021-3504 Upstream summary: It was discovered that hivex incorrectly handled certain input. An attacker could use this vulnerability to cause a crash or obtain sensitive information. Table […]

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Ubuntu 18.04 — http-parser — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — http-parser — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 February 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5563-1 Related CVEs: CVE-2020-8287 Upstream summary: It was discovered that http-parser incorrectly handled certain requests. An attacker could possibly use this issue to bypass security controls or gain unauthorized access […]

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Ubuntu 18.04 — libspf2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libspf2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 17 February 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6584-1 Related CVEs: CVE-2021-20314 CVE-2021-33912 CVE-2021-33913 Upstream summary: Philipp Jeitner and Haya Shulman discovered that Libspf2 incorrectly handled certain inputs. If a user or an automated system were tricked into […]

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Ubuntu 18.04 — cpanminus — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — cpanminus — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 February 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5230-1 Related CVEs: CVE-2020-16154 Upstream summary: It was discovered that App::cpanminus did not properly verify CHECKSUMS files. An attacker could possibly use this issue to bypass signature verification, gaining access […]

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Common Problems 117904

Ubuntu 18.04 apt lock errors during updates

🟡 Medium   ⏱ 5–30 min  Last verified: 14 February 2021 📖 ~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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