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Debian 11 — ruby-rest-client — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ruby-rest-client — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 August 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-1820 CVE-2015-3448 Upstream summary: REST client for Ruby (aka rest-client) before 1.8.0 allows remote attackers to conduct session fixation attacks or obtain sensitive cookie information by leveraging passage […]

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Ubuntu 20.04 — c3p0 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — c3p0 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 August 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5293-1 Related CVEs: CVE-2019-5427 Upstream summary: Aaron Massey discovered that c3p0 could be made to crash when parsing certain input. An attacker able to modify the application's XML configuration file […]

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Gentoo Linux — sys-auth/polkit — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — sys-auth/polkit — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202201-01 Related CVEs: CVE-2021-4034 CVE-2021-3560 Upstream summary: Flawed input validation of arguments was discovered in the 'pkexec' program's main() function. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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How to Install Lua on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Lua on FreeBSD 13

Introduction This guide explains how to Install Lua on FreeBSD 13 on FreeBSD 13. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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Ubuntu 18.04 — qtsvg-opensource-src — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — qtsvg-opensource-src — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 August 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5241-1 Related CVEs: CVE-2018-19869 CVE-2021-3481 CVE-2021-45930 Upstream summary: It was discovered that QtSvg incorrectly handled certain malformed SVG images. If a user or automated system were tricked into opening a […]

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Oracle Linux 8 — krb5 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — krb5 — vulnerability — patch and remediation guide (ELSA-2021-3576)

🟡 Medium   ⏱ 10–30 min  Last verified: 29 August 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3576 Related CVEs: CVE-2021-36222 CVE-2021-37750 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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FreeBSD 13 — virtualbox-ose — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — virtualbox-ose — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 29 August 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: virtualbox-ose — multiple vulnerabilities Related CVEs: CVE-2013-5892 CVE-2015-3456 CVE-2015-4813 CVE-2015-4896 CVE-2020-14628 CVE-2020-14629 CVE-2020-14646 CVE-2020-14647  +12 more Upstream summary: [email protected] reports: Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 29 August 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: clamav — ClamAV UDF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability Related CVEs: CVE-2004-0270 CVE-2005-0133 CVE-2005-1922 CVE-2005-1923 CVE-2005-2919 CVE-2005-2920 CVE-2006-0162 CVE-2006-1614  +12 more Upstream summary: Cisco reports: A vulnerability in […]

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Como Instalar o Servidor Web Apache no Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Como Instalar o Servidor Web Apache no Ubuntu 20.04

O servidor HTTP Apache é o servidor Web mais amplamente usado no mundo. Ele fornece muitas características poderosas, incluindo módulos carregáveis dinamicamente, suporte robusto de mídia e uma integração extensa com outros softwares populares. Neste guia, vamos explicar como…

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