Ubuntu 20.04

Ubuntu 20.04 — zookeeper — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — zookeeper — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 December 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6559-1 Related CVEs: CVE-2019-0201 CVE-2023-44981 Upstream summary: It was discovered that ZooKeeper incorrectly handled authorization for the getACL() command. A remote attacker could possibly use this issue to obtain sensitive […]

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Ubuntu 20.04にLAMPスタックでWordPressをインストールする方法 — step-by-step Linux tutorial on Progressive Robot

Ubuntu 20.04にLAMPスタックでWordPressをインストールする方法

WordPressは非常に人気のあるオープンソース技術で。WordPress  で構築されたサイトは現在オンラインになっている全Wサイトの36%を占めています。このチュートリアルは、システム管理に慣れたユーザーや、サーバー側でWordPressインスタンスの管理方法を学びたいユーザーを対象としています。このガイドでは、Linux Ubuntu 20.04サーバーにLAMPを介してWordPressをインストール・セットアップします。

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Common Problems 117452

Ubuntu 20.04 LTS – cloud-init network overrides break static IP settings – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 21 November 2023 Affected versions: Ubuntu 20.04 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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Ubuntu 20.04 — zbar — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — zbar — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 November 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7118-1 Related CVEs: CVE-2023-40889 CVE-2023-40890 Upstream summary: It was discovered that ZBar did not properly handle certain QR codes. If a user or automated system using ZBar were tricked into […]

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Ubuntu 20.04 — configobj — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — configobj — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 November 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7040-1 Related CVEs: CVE-2023-26112 Upstream summary: It was discovered that ConfigObj contains regex that is susceptible to catastrophic backtracking. An attacker could possibly use this issue to cause a regular […]

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Common Problems 117464

Ubuntu 20.04 LTS GRUB Installation Failed During Kernel Upgrade

🟡 Medium   ⏱ 5–30 min  Last verified: 15 November 2023 📖 ~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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