Linux

Ubuntu 16.04 — sigil — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — sigil — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 September 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4085-1 Related CVEs: CVE-2019-14452 Upstream summary: Mike Salvatore discovered that Sigil mishandled certain malformed EPUB files. An attacker could use this vulnerability to write arbitrary files to the filesystem. Table […]

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Arch Linux — python-mysql-connector — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — python-mysql-connector — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201902-21 Related CVEs: CVE-2019-2435 Upstream summary: Type: authentication bypass. Status: Fixed. Affected: 8.0.13-1. Fixed in: 8.0.15-1. Group: AVG-898. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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How to Set Up Snort Network Intrusion Detection on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Snort Network Intrusion Detection on Debian 9

Introduction How to Set Up Snort Network Intrusion Detection on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from […]

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Comment lire et configurer les variables d'environnement et de shell sous Linux — step-by-step Linux tutorial on Progressive Robot

Comment lire et configurer les variables d’environnement et de shell sous Linux

Dans les systèmes Linux, les variables d’environnement et de shell servent à configurer les conditions d’utilisation du shell. Vous pouvez les transmettre aux processus enfant et les utiliser pour configurer des options. Vous pouvez également mettre certaines informations à la disposition des processus qui se déclenchent pendant la session. Tout au long de ce guide, nous allons parler de la manière de lire, modifier, créer et détruire des variables d’environnement et de shell.

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SLES 15 — pam_krb5 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — pam_krb5 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 4 September 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SR:2008:027 (see also SUSE bugzilla) Related CVEs: CVE-2008-3825 CVE-2009-1384 Upstream summary: pam_krb5 2.2.14 in Red Hat Enterprise Linux (RHEL) 5 and earlier, when the existing_ticket option is enabled, uses incorrect privileges when […]

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

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2019-1269)

🔴 Critical   ⏱ 15–90 min  Last verified: 4 September 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-1269 Related CVEs: CVE-2019-5798 CVE-2019-11691 CVE-2019-11693 CVE-2019-9819 CVE-2019-7317 CVE-2019-9797 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Arch Linux — live-media — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — live-media — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201905-17 Related CVEs: CVE-2019-7733 CVE-2019-7314 Upstream summary: Type: multiple issues. Status: Fixed. Affected: 2018.10.17-1. Fixed in: 2019.05.12-1. Group: AVG-870. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Debian 10 — opendmarc — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — opendmarc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 September 2019 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-16378 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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Common Problems 118956

Ubuntu 14.04 LTS – system boots into grub rescue prompt after update – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 3 September 2019 Affected versions: Ubuntu 14.04 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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