Linux

Amazon Linux 2 — fence-agents — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — fence-agents — 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 ALAS2-2019-1348 Related CVEs: CVE-2019-10153 Upstream summary: A flaw was discovered in fence-agents, prior to version 4.3.4, where using non-ASCII characters in a guest VM's comment or other fields would cause […]

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Amazon Linux 2 — procps-ng — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — procps-ng — multiple vulnerabilities (3 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 ALAS2-2018-1031 Related CVEs: CVE-2018-1124 CVE-2018-1126 CVE-2018-1122 Upstream summary: Multiple integer overflows leading to heap corruption flaws were discovered in file2strvec(). These vulnerabilities can lead to privilege escalation for a local […]

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How To Install Apache Tomcat 8 on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Install Apache Tomcat 8 on CentOS 7

Apache Tomcat is a web server and servlet container that is used to serve Java applications. Tomcat is an open source implementation of the Java Servlet and JavaServer Pages technologies, released by the Apache Software Foundation. This tutorial covers the basic installation and some configuration of the latest release of Tomcat 8 on your CentOS 7 server.

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Ubuntu 16.04 — gosa — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — gosa — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 12 August 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4609-1 Related CVEs: CVE-2018-1000528 CVE-2019-11187 CVE-2019-14466 Upstream summary: Fabian Henneke discovered that GOsa incorrectly handled client cookies. An authenticated user could exploit this with a crafted cookie to perform file […]

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Gentoo Linux — mail-mta/netqmail — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — mail-mta/netqmail — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202007-01 Related CVEs: CVE-2005-1513 CVE-2005-1514 CVE-2005-1515 Upstream summary: Multiple vulnerabilities have been discovered in netqmail. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & […]

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Oracle Linux 8 — python-pip — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — python-pip — vulnerability — patch and remediation guide (ELSA-2020-1916)

🟡 Medium   ⏱ 10–30 min  Last verified: 12 August 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1916 Related CVEs: CVE-2019-11324 CVE-2018-20060 CVE-2019-11236 CVE-2018-18074 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Arch Linux — libytnef — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — libytnef — vulnerability — 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-201708-10 Related CVEs: CVE-2017-9058 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 1.9.2-1. Fixed in: 1.9.2-2. Group: AVG-275. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Alpine Linux edge — aspell — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — aspell — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.60.8-r1 📖 ~4 min read  •  Source: Alpine secdb entry — aspell 0.60.8-r1 Related CVEs: CVE-2019-25051 CVE-2019-17544 Upstream summary: Alpine main repository for vedge ships aspell 0.60.8-r1 which addresses CVE-2019-25051. Table of contents Symptom & Impact […]

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Como configurar a autenticação baseada em chaves SSH em um servidor Linux — step-by-step Linux tutorial on Progressive Robot

Como configurar a autenticação baseada em chaves SSH em um servidor Linux

O SSH, ou shell seguro, é a maneira mais comum de administrar servidores Linux remotos. Embora o daemon permita a autenticação baseada em senha, expor uma conta protegida por senha na rede pode tornar seu servidor vulnerável a ataques de força. Neste guia, demonstraremos como configurar seu servidor com chaves SSH, que é o método de autenticação recomendado. É muito mais difícil para os invasores contorná-lo, tornando o seu mecanismo de login mais seguro.

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SLES 15 — libvncclient0 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libvncclient0 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 11 August 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2019:0060-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-15126 CVE-2018-15127 CVE-2018-20749 CVE-2018-20750 CVE-2018-6307 CVE-2017-18922 CVE-2018-20019 CVE-2018-20020  +12 more Upstream summary: LibVNC before commit 73cb96fec028a576a5a24417b57723b55854ad7b contains heap use-after-free vulnerability in server code of file […]

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