Linux

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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Cómo usar ps, kill y nice para administrar procesos en Linux — step-by-step Linux tutorial on Progressive Robot

Cómo usar ps, kill y nice para administrar procesos en Linux

La administración de procesos es una habilidad esencial al usar cualquier sistema informático. Esto es especialmente cierto cuando se administra un entorno de servidores. Este artículo presentará algunas herramientas potentes que pueden usarse para administrar los procesos en un sistema Linux.

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Amazon Linux 2 — json-c — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — json-c — 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 ALAS2-2020-1442 Related CVEs: CVE-2020-12762 Upstream summary: json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend. (CVE-2020-12762) Table of contents Symptom […]

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SLES 15 — libzmq5 — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libzmq5 — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 15 February 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-FU-2022:0444-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-13132 CVE-2019-6250 CVE-2020-15166 CVE-2014-7202 CVE-2014-7203 CVE-2014-9721 Upstream summary: In ZeroMQ libzmq before 4.0.9, 4.1.x before 4.1.7, and 4.2.x before 4.3.2, a remote, unauthenticated client connecting […]

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Установка Jenkins в Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Установка Jenkins в Ubuntu 20.04

При наличии повторяющихся технических задач подобрать действительно работающее решение автоматизации не так просто. Сервер автоматизации Jenkins с открытым исходным кодом позволяет эффективно управлять разнообразными задачами от сборки до развертывания…

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SLES 12 — mailman — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — mailman — multiple vulnerabilities (14 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 15 February 2021 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:1886-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-43331 CVE-2021-43332 CVE-2021-44227 CVE-2021-42096 CVE-2019-3693 CVE-2020-12108 CVE-2020-12137 CVE-2020-15011  +6 more Upstream summary: In GNU Mailman before 2.1.36, a crafted URL to the Cgi/options.py user options […]

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How To Install Dropbox Client as a Service on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Install Dropbox Client as a Service on CentOS 7

In this tutorial, we’ll show you how to install the Dropbox client, and configure it to run as a headless service, on a CentOS 7 server. This will allow your server to connect to Dropbox so that you can keep a copy of your Dropbox files synchronized on your server.

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Oracle Linux 8 — ruby:2.7 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — ruby:2.7 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-3821)

🟡 Medium   ⏱ 10–30 min  Last verified: 14 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-3821 Related CVEs: CVE-2023-28755 CVE-2023-28756 CVE-2021-33621 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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Common Problems 118493

Ubuntu 16.04 LTS – OOM killer terminates critical services – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 14 February 2021 Affected versions: Ubuntu 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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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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