December 2021 - Page 60 of 71

Debian 11 — jackson-dataformat-cbor — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — jackson-dataformat-cbor — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-28491 Upstream summary: This affects the package com.fasterxml.jackson.dataformat:jackson-dataformat-cbor from 0 and before 2.11.4, from 2.12.0-rc1 and before 2.12.1. Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError exception. […]

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How to Configure Mandatory Access Control on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure Mandatory Access Control on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure mandatory access control on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

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Cómo instalar el servidor web Apache en Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Cómo instalar el servidor web Apache en Ubuntu 20.04

El servidor HTTP Apache es el más usado del mundo. Ofrece muchas características potentes, entre las que se incluyen módulos que se cargan de forma dinámica, una sólida compatibilidad con medios y amplia integración con otras herramientas de software populares. En esta…

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Debian 11 — rust-failure — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — rust-failure — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-25010 CVE-2020-25575 Upstream summary: An issue was discovered in the failure crate through 2019-11-13 for Rust. Type confusion can occur when __private_get_type_id__ is overridden. Table of contents Symptom […]

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How to Use Podman Quadlet on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Use Podman Quadlet on RHEL 10

Introduction How to Use Podman Quadlet on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible and […]

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How To Install And Configure mod_deflate On CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Install And Configure mod_deflate On CentOS 7

Mod\_deflate is an Apache module which allows output from your web server to be compressed before being sent to the client. Once the size of your site content is compressed, its size is smaller, and clients are able to download it faster. This is valuable not only for clients with lower bandwidth, but it is also taken into consideration by search engines when evaluating your site performance and its page rank.

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openSUSE Tumbleweed — usbredir — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — usbredir — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2021-3700 Upstream summary: A use-after-free vulnerability was found in usbredir in versions prior to 0.11.0 in the usbredirparser_serialize() in usbredirparser/usbredirparser.c. This issue occurs when serializing […]

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Amazon Linux 2 — mod_auth_mellon — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — mod_auth_mellon — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2019-1200 Related CVEs: CVE-2019-3877 CVE-2019-3878 CVE-2021-3639 CVE-2019-13038 Upstream summary: A vulnerability was found in a previous version of mod_auth_mellon. An open redirect in the logout URL allows requests with backslashes […]

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