🟢 Low ⏱ 5–15 min Last verified: 10 July 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4533-1 Related CVEs: https://launchpad.net/bugs/1839431 Upstream summary: Veeti Veteläinen discovered that the LTSP Display Manager (ldm) incorrectly handled user logins from unsupported shells. A local attacker could possibly use this issue […]
Melissa Anderson escribió una versión anterior de este tutorial. MongoDB, también conocido como Mongo, es una base de datos de documentos de código abierto que se utiliza en…
A PostgreSQL database is a robust and flexible choice for your Ruby on Rails application. In this tutorial, you will set up a Ruby on Rails development environment connected to a PostgreSQL database on an Ubuntu 20.04 server. You will install and configure PostgreSQL, then test your setup by creating a Rails application that uses PostgreSQL as its database server.
🟠 High ⏱ 5–30 min Last verified: 7 July 2021 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 […]
In this guide, you will build a Python application using the Flask microframework on Ubuntu 20.04. The majority of this tutorial is about how to set up the Gunicorn application server to run the application and how to configure Nginx to act as a front-end reverse proxy.
🟢 Low ⏱ 5–15 min Last verified: 4 July 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7246-1 Related CVEs: CVE-2020-11022 CVE-2020-11023 Upstream summary: It was discovered that jQuery incorrectly handled parsing untrusted HTML. A remote attacker could possibly use this issue to execute arbitrary code. Table […]
🟠 High ⏱ 15–60 min Last verified: 4 July 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4843-1 Related CVEs: CVE-2014-9218 CVE-2016-6609 CVE-2016-6619 CVE-2016-6630 CVE-2016-9849 CVE-2016-9866 CVE-2017-18264 CVE-2017-1000014 +12 more Upstream summary: Javier Nieto and Andres Rojas discovered that phpMyAdmin incorrectly managed input in the form of […]
🟡 Medium ⏱ 10–30 min Last verified: 3 July 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5019-1 Related CVEs: CVE-2021-1093 CVE-2021-1094 CVE-2021-1095 CVE-2021-1076 CVE-2021-1077 CVE-2021-1052 CVE-2021-1053 Upstream summary: It was discovered that an assert() could be triggered in the NVIDIA graphics drivers. A local attacker could […]
Linux servers are often administered remotely using SSH by connecting to an OpenSSH server, which is the default SSH server software used within Ubuntu, Debian, CentOS, FreeBSD, and most other Linux/BSD-based systems. In this tutorial, you will harden your Ubuntu 20.04 OpenSSH server by using different configuration options to help ensure that remote access to your server is as secure as possible.
UFW, o Uncomplicated Firewall, es una interfaz de gestión de firewall simplificada que oculta la complejidad de las tecnologías de filtrado de paquetes de nivel inferior, como iptables y nftables. Si desea comenzar a proteger su red y no está seguro respecto de la…
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