Linux

Amazon Linux 2 — kernel-livepatch-4.14.252-195.481 — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-4.14.252-195.481 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2021-070 Related CVEs: CVE-2021-4002 Upstream summary: No CVE associated with this advisory Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – […]

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Como instalar o Webmin no Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Como instalar o Webmin no Ubuntu 20.04

O Webmin é um painel de controle Web moderno que permite que você execute seu servidor Linux através de uma interface baseada no navegador. Com o Webmin, você pode gerenciar as contas de usuários, definir as configurações de DNS e alterar configurações…

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openSUSE Tumbleweed — openconnect — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — openconnect — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2013-7098 CVE-2019-16239 CVE-2012-6128 CVE-2020-12105 CVE-2020-12823 CVE-2012-3291 CVE-2018-20319 Upstream summary: OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on […]

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

Debian 10 — kitty — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 January 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-35605 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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Arch Linux — nextcloud-app-mail — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — nextcloud-app-mail — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202107-41 Related CVEs: CVE-2021-32707 Upstream summary: Type: information disclosure. Status: Fixed. Affected: 1.9.5-2. Fixed in: 1.10.1-1. Group: AVG-2145. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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Arch Linux — nextcloud — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — nextcloud — multiple vulnerabilities (12 CVEs) — 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-202107-22 Related CVEs: CVE-2021-32741 CVE-2021-32734 CVE-2021-32733 CVE-2021-32726 CVE-2021-32725 CVE-2021-32705 CVE-2021-32703 CVE-2021-32688  +4 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 21.0.2-1. Fixed in: 21.0.3-1. Group: AVG-2144. Table of contents […]

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Oracle Linux 8 — osinfo-db and libosinfo — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — osinfo-db and libosinfo — security and stability fixes — required update (ELSA-2019-3387)

🟢 Low   ⏱ 5–15 min  Last verified: 29 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3387 Related CVEs: CVE-2019-13313 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 118439

Ubuntu 16.04 LTS UFW Rules Block Return Traffic

🟡 Medium   ⏱ 5–30 min  Last verified: 29 January 2021 Affected versions: 16.04 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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