Package Management

Oracle Linux 8 — dnf — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — dnf — security and stability fixes — required update (ELSA-2021-4464)

🟡 Medium   ⏱ 10–30 min  Last verified: 8 December 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4464 Related CVEs: CVE-2021-3445 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
How to Set Up Galera Cluster for MariaDB on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up Galera Cluster for MariaDB on CentOS Stream 9

Introduction Setting up set up galera cluster for mariadb on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up Galera Cluster for MariaDB on CentOS Stream 9, with all the commands you need, the SELinux […]

Read more
FreeBSD 13 — atheme-services — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — atheme-services — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: atheme-services — multiple vulnerabilities Related CVEs: CVE-2014-9773 CVE-2016-4478 Upstream summary: Mitre reports: modules/chanserv/flags.c in Atheme before 7.2.7 allows remote attackers to modify the Anope FLAGS behavior by registering and dropping […]

Read more
FreeBSD 13 — lha — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — lha — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: lha — numerous vulnerabilities when extracting archives Related CVEs: CVE-2004-0234 CVE-2004-0235 CVE-2004-0694 CVE-2004-0745 CVE-2004-0769 CVE-2004-0771 Upstream summary: Source code reviews of lha by Lukasz Wojtow, Thomas Biege, and others uncovered […]

Read more
AlmaLinux 8 — rhn-custom-info — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — rhn-custom-info — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2019:3355 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

Read more
How to Configure Network Attached Storage on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure Network Attached Storage 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 network attached storage 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 […]

Read more
AlmaLinux 8 — python-configshell — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — python-configshell — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2020:4506 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

Read more
Debian 11 — golang-github-revel-revel — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — golang-github-revel-revel — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-36568 Upstream summary: Unsanitized input in the query parser in github.com/revel/revel before v1.0.0 allows remote attackers to cause resource exhaustion via memory allocation. Table of contents Symptom & […]

Read more
Debian 11 — transmission — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — transmission — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 8 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-1757 CVE-2010-0012 CVE-2010-0748 CVE-2010-0749 CVE-2010-1853 CVE-2012-4037 CVE-2012-6129 CVE-2014-4909  +2 more Upstream summary: Cross-site request forgery (CSRF) vulnerability in Transmission 1.5 before 1.53 and 1.6 before 1.61 allows remote […]

Read more
Debian 11 — rubygems — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — rubygems — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 8 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-2125 CVE-2012-2126 CVE-2013-4287 CVE-2013-4363 CVE-2017-0899 CVE-2017-0900 CVE-2017-0901 CVE-2017-0902  +12 more Upstream summary: RubyGems before 1.8.23 can redirect HTTPS connections to HTTP, which makes it easier for remote attackers […]

Read more
CHAT