Package Management

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

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

🟠 High   ⏱ 15–60 min  Last verified: 24 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ffmpeg — multiple vulnerabilities Related CVEs: CVE-2015-3395 CVE-2015-3417 CVE-2015-6761 CVE-2015-6818 CVE-2015-6819 CVE-2015-6820 CVE-2015-6821 CVE-2015-6822  +12 more Upstream summary: NVD reports: An issue was discovered in the FFmpeg package, where vp3_decode_frame […]

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

FreeBSD 13 — nginx-devel — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: nginx-devel — multiple vulnerabilities Related CVEs: CVE-2009-2629 CVE-2012-2089 CVE-2013-2028 CVE-2013-2070 CVE-2013-4547 CVE-2014-0088 CVE-2014-0133 CVE-2014-3556  +12 more Upstream summary: The nginx project reports: nginx 1.31.0 fixes multiple security issues affecting HTTP/2 […]

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FreeBSD 13 — percona56-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — percona56-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: MySQL Server — Multiple vulerabilities Related CVEs: CVE-2015-4792 CVE-2015-4802 CVE-2015-4807 CVE-2015-4815 CVE-2015-4826 CVE-2015-4830 CVE-2015-4836 CVE-2015-4858  +12 more Upstream summary: Oracle reports: This Critical Patch Update contains 45 new security patches […]

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How to Install and Configure Nagios Core on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install and Configure Nagios Core on RHEL 8

Nagios Core is one of the most widely-deployed open-source IT infrastructure monitoring systems in the world, providing alerting and status dashboards for hosts, services, and network devices. On RHEL 8, installing Nagios Core from source gives you the latest release and full control over the build configuration. This tutorial walks through every step from prerequisite […]

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Oracle Linux 8 — kexec-tools security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kexec-tools security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-4404)

🟢 Low   ⏱ 5–15 min  Last verified: 23 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4404 Related CVEs: CVE-2021-20269 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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AlmaLinux 8 — mesa-demos — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — mesa-demos — 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-2020:4742 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 […]

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How to Configure Caddy Web Server on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Configure Caddy Web Server on SLES 12

Introduction This tutorial covers How to Configure Caddy Web Server on SLES 12 on SLES 12. SLES 12 (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. Prerequisites Ensure your SLES 12 system is up to date: zypper […]

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Common Problems 117396

Ubuntu 20.04 LTS – apt lock prevents updates during maintenance windows – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 23 June 2021 Affected versions: Ubuntu 20.04 LTS 📖 ~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 […]

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AlmaLinux 8 — source-highlight — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — source-highlight — 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-2021:1892 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 […]

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