Package Management

FreeBSD 12 — avahi-qt — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — avahi-qt — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: avahi — denial of service Related CVEs: CVE-2010-2244 CVE-2011-1002 Upstream summary: Avahi developers reports: A vulnerability has been reported in Avahi, which can be exploited by malicious people to cause […]

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Common Problems 113925

RHEL 10 – SELinux AVC denials break NGINX reverse proxy after policy update

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: RHEL 10 RHEL 10.0 RHEL 10.1 📖 ~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 & […]

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How to Configure AppArmor Enforcement on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure AppArmor Enforcement on SLES 15

Introduction This tutorial covers How to Configure AppArmor Enforcement on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Check AppArmor Status systemctl status apparmor aa-status Step 2 […]

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Ubuntu 16.04 — libbsd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libbsd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4243-1 Related CVEs: CVE-2016-2090 CVE-2019-20367 Upstream summary: It was discovered that libbsd incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. This issue only […]

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How to Set Up Kubernetes Ingress with Nginx Ingress Controller on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up Kubernetes Ingress with Nginx Ingress Controller on RHEL 7

How to Set Up Kubernetes Ingress with Nginx Ingress Controller on RHEL 7 Kubernetes Ingress provides a powerful way to expose HTTP and HTTPS routes from outside the cluster to services running inside it. Rather than creating a separate LoadBalancer service for every application, an Ingress resource lets you define routing rules in one place, […]

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Debian 10 — lrzip — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — lrzip — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-5786 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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openSUSE Tumbleweed — mpv — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — mpv — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2018-6360 Upstream summary: mpv through 0.28.0 allows remote attackers to execute arbitrary code via a crafted web site, because it reads HTML documents containing VIDEO […]

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How to Set Up Mail Relay with Postfix on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Set Up Mail Relay with Postfix on RHEL 10

Introduction Setting up set up mail relay with postfix on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up Mail Relay with Postfix on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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openSUSE Tumbleweed — libodbc2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libodbc2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2018:1845-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-7409 CVE-2018-7485 Upstream summary: In unixODBC before 2.3.5, there is a buffer overflow in the unicode_to_ansi_copy() function in DriverManager/__info.c. Table of contents Symptom & Impact […]

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FreeBSD 12 — hlstats — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — hlstats — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: hlstats — multiple cross site scripting vulnerabilities Related CVEs: CVE-2006-4454 CVE-2006-6780 CVE-2006-6781 CVE-2007-2812 Upstream summary: Kefka reports multiple cross site scripting vulnerabilities within hlstats. The vulnerabilities are caused due to […]

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