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AlmaLinux 8 — polkit — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — polkit — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2022:0267 Related CVEs: CVE-2021-4034 CVE-2021-4115 Upstream summary: The polkit packages provide a component for controlling system-wide privileges. This component provides a uniform and organized way for non-privileged processes to communicate with privileged […]

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FreeBSD 13 — py39-aiohttp — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py39-aiohttp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: aiohttp — open redirect vulnerability Related CVEs: CVE-2021-21330 Upstream summary: Sviatoslav Sydorenko reports: Open redirect vulnerability — a maliciously crafted link to an aiohttp-based web-server could redirect the browser to […]

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Common Problems 115096

RHEL 8 sudo Access Broken By Invalid sudoers Include File

🟡 Medium   ⏱ 5–30 min  Last verified: 30 November 2021 📖 ~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 & Cross-Refs References & Further […]

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Comment redémarrer vos applications Node.js automatiquement avec nodemon — step-by-step DevOps tutorial on Progressive Robot

Comment redémarrer vos applications Node.js automatiquement avec nodemon

Sous Node.js, vous devez redémarrer le processus pour que les changements prennent effet, une étape supplémentaire qui s’ajoute à votre flux de travail pour que les modifications soient implémentées. Vous pouvez éviter cette étape supplémentaire en utilisant nodemon qui se chargera de redémarrer le processus automatiquement. Cet article vous permettra d’en apprendre davantage sur l’installation, le réglage et la configuration de nodemon.

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FreeBSD 13 — postgresql96-server — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — postgresql96-server — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 30 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: PostgreSQL — Possible man-in-the-middle attacks Related CVEs: CVE-2016-5423 CVE-2016-5424 CVE-2017-15098 CVE-2017-15099 CVE-2017-7546 CVE-2017-7547 CVE-2017-7548 CVE-2018-1052  +11 more Upstream summary: The PostgreSQL Project reports: CVE-2021-23214: A man-in-the-middle with the ability to […]

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How to Configure pf Firewall Rules on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure pf Firewall Rules on FreeBSD 13

Introduction Deploying configure pf firewall rules on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard […]

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How to Set Up Dante Proxy for Private Connections on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How to Set Up Dante Proxy for Private Connections on Ubuntu 20.04

Proxy servers are a useful way of caching or obfuscating web traffic. This means that web requests can be served from different inbound or outbound addresses than they appear to be, by offloading the connection to intermediaries. For regular end users, this usually means allowing you to make web requests from a different IP address than your own. In this tutorial, you will be installing and configuring Squid to support a number of popular proxy protocols on a Ubuntu 20.04 server.

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FreeBSD 13 — rubygem-loofah — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — rubygem-loofah — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Loofah — XSS vulnerability Related CVEs: CVE-2018-16468 CVE-2018-8048 CVE-2019-15587 Upstream summary: GitHub issue: This issue has been created for public disclosure of an XSS vulnerability that was responsibly reported by […]

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FreeBSD 12 — pg_partman — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — pg_partman — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 November 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: PG Partition Manager — arbitrary code execution Related CVEs: CVE-2021-33204 Upstream summary: PG Partition Manager reports: In the pg_partman (aka PG Partition Manager) extension before 4.5.1 for PostgreSQL, arbitrary code […]

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