August 2021 - Page 22 of 69

Debian 11 — ruby-rack-ssl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ruby-rack-ssl — 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-2014-2538 Upstream summary: Cross-site scripting (XSS) vulnerability in lib/rack/ssl.rb in the rack-ssl gem before 1.4.0 for Ruby allows remote attackers to inject arbitrary web script or HTML via […]

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How to Configure LVM on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure LVM on RHEL 8

Logical Volume Manager (LVM) is a flexible disk management system that allows you to create, resize, and manage storage volumes on RHEL 8 without the limitations of traditional partitioning. By abstracting physical disks into logical volumes, LVM lets you grow or shrink filesystems on the fly, take point-in-time snapshots, and pool multiple disks into a […]

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Ubuntu 20.04 — brotli — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — brotli — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4568-1 Related CVEs: CVE-2020-8927 Upstream summary: It was discovered that Brotli incorrectly handled certain inputs. An attacker could possibly use this issue to cause a crash. Table of contents Symptom […]

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Ubuntu 20.04 — zeromq3 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — zeromq3 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4920-1 Related CVEs: CVE-2019-13132 CVE-2020-15166 CVE-2021-20234 CVE-2021-20235 CVE-2021-20237 Upstream summary: It was discovered that ZeroMQ incorrectly handled certain application metadata. A remote attacker could use this issue to cause ZeroMQ […]

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Ubuntu 14.04 — libpano13 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — libpano13 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6163-1 Related CVEs: CVE-2021-20307 CVE-2021-33293 Upstream summary: It was discovered that pano13 did not properly validate the prefix provided for PTcrop's output. An attacker could use this issue to cause […]

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SLES 15 — golang-github-prometheus-node_exporter — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — golang-github-prometheus-node_exporter — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:2149-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-20180 CVE-2021-20191 CVE-2021-20228 CVE-2021-3447 CVE-2021-3583 CVE-2021-3620 Upstream summary: A flaw was found in ansible module where credentials are disclosed in the console log by default […]

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FreeBSD 13 — tethereal — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — tethereal — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: wireshark — PCNFSD Dissector Denial of Service Vulnerability Related CVEs: CVE-2004-0176 CVE-2004-0365 CVE-2004-0367 CVE-2004-0504 CVE-2004-0505 CVE-2004-0506 CVE-2004-0507 CVE-2004-0633  +12 more Upstream summary: Secunia reports: A vulnerability has been reported in […]

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Ultimate Guide: Choose a Linux Distribution for Cloud Servers 2025–2026

Ultimate Guide: Choose a Linux Distribution for Cloud Servers 2025–2026

Learning how to choose a Linux distribution is one of the most critical decisions you’ll make when setting up cloud servers, VPS instances, containers, development environments, production backends, or any Linux-based infrastructure in 2025–2026. The right Linux distribution affects stability, security updates, package availability, community support, ease of learning, container compatibility, cloud image support, and long-term maintenance costs.

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Como instalar o Git no Ubuntu 18.04 [Início rápido] — step-by-step Linux tutorial on Progressive Robot

Como instalar o Git no Ubuntu 18.04 [Início rápido]

Os sistemas de controle de versão ajudam a compartilhar e colaborar em projetos de desenvolvimento de software. O Git é um dos sistemas de controle de versão mais populares disponíveis atualmente. Este tutorial irá mostrar como instalar e configurar o Git em um servidor…

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