Linux

Gentoo Linux — app-backup/tsm — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — app-backup/tsm — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202209-02 Related CVEs: CVE-2021-3711 CVE-2021-3712 CVE-2021-4104 CVE-2021-29672 CVE-2021-39048 Upstream summary: Multiple vulnerabilities have been discovered in IBM Spectrum Protect. Please review the CVE identifiers referenced below for details. Table of contents Symptom […]

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Oracle Linux 8 — glibc — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — glibc — vulnerability — patch and remediation guide (ELSA-2021-9280)

🟠 High   ⏱ 15–60 min  Last verified: 18 March 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-9280 Related CVEs: CVE-2021-3326 CVE-2019-25013 CVE-2020-27618 CVE-2016-10228 CVE-2019-9169 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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Oracle Linux 8 — tracepath6 does not parse destination IPv6 address correctly — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — tracepath6 does not parse destination IPv6 address correctly

🟠 High   ⏱ 5–30 min  Last verified: 17 March 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 29540588 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 […]

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

Ubuntu 18.04 — gsl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 17 March 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6472-1 Related CVEs: CVE-2020-35357 Upstream summary: It was discovered that GNU Scientific Library incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially […]

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Ubuntu 20.04で認証局(CA)をセットアップおよび設定する方法 — step-by-step Linux tutorial on Progressive Robot

Ubuntu 20.04で認証局(CA)をセットアップおよび設定する方法

Ubuntu 20.04で実行するプライベート認証局は、クライアントとサーバー間の暗号化された接続を必要とするプログラムを設定、テスト、および実行できます。プライベートCAを使用して、インフラストラクチャ内のユーザー、サーバー、または個々のプログラムとサービスの証明書を発行できます。プライベートCAは、すべての開発、ステージング、および本番環境で同様のアーキテクチャと設定を使用できるようにするのに役立ちます。

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Ubuntu 14.04 — libnet-cidr-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — libnet-cidr-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 17 March 2021 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8110-1 Related CVEs: CVE-2021-4456 Upstream summary: Dave Rolsky discovered that Net-CIDR did not properly sanitize IP addresses. An attacker could possibly use this to bypass IP-based restrictions. Table of contents […]

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Oracle Linux 8 — libfastjson — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libfastjson — vulnerability — patch and remediation guide (ELSA-2023-6976)

🟡 Medium   ⏱ 10–30 min  Last verified: 17 March 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6976 Related CVEs: CVE-2020-12762 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How To Install Linux, Apache, MySQL, PHP (LAMP) stack On CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Install Linux, Apache, MySQL, PHP (LAMP) stack On CentOS 7

In this guide, we’ll get a LAMP stack installed on an CentOS 7 VPS. A “LAMP” stack is a group of open source software that is typically installed together to enable a server to host dynamic websites and web apps. This term is actually an acronym which represents the **L**inux operating system, with the **A**pache web server. The site data is stored in a **M**ySQL database (using MariaDB), and dynamic content is processed by **P**HP.

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