Operations

Common Problems 112469

Windows Server 2019 — Rogue DHCP server issues incorrect gateway and DNS options — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 28 October 2019 Affected versions: Windows Server 2019 📖 ~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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How to Set Up FluxCD on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Set Up FluxCD on SLES 15

Introduction This tutorial covers How to Set Up FluxCD 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. Prerequisites Ensure your SLES 15 system is up to date: zypper refresh […]

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FreeBSD 12 — rubygem-bson — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — rubygem-bson — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 October 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: rubygem-bson — DoS and possible injection Related CVEs: CVE-2015-4412 Upstream summary: Phill MV reports: By submitting a specially crafted string to a service relying on the bson rubygem, an attacker […]

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FreeBSD 12 — php5-mbstring — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php5-mbstring — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 October 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php-mbstring — php mbstring buffer overflow vulnerability Related CVEs: CVE-2008-5557 Upstream summary: SecurityFocus reports: PHP is prone to a buffer-overflow vulnerability because it fails to perform boundary checks before copying […]

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

openSUSE Tumbleweed — kafka-source — 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 TID7022775 (see also SUSE bugzilla) Related CVEs: CVE-2018-7489 CVE-2018-1288 Upstream summary: FasterXML jackson-databind before 2.7.9.3, 2.8.x before 2.8.11.1 and 2.9.x before 2.9.5 allows unauthenticated remote code execution because of an incomplete fix […]

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

FreeBSD 12 — htdig — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 October 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: htdig — cross site scripting vulnerability Related CVEs: CVE-2005-0085 Upstream summary: Michael Krax reports a vulnerability within htdig. The vulnerability lies within an unsanitized config parameter, allowing a malicious attacker […]

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How to Set Up a LAMP Stack on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up a LAMP Stack on RHEL 7

How to Set Up a LAMP Stack on RHEL 7 A LAMP stack — Linux, Apache, MySQL, and PHP — is one of the most widely deployed web server configurations in the world. On Red Hat Enterprise Linux 7, setting up a fully functional LAMP stack requires pulling packages from multiple repositories, because RHEL 7’s […]

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Arch Linux — gst-plugins-bad — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — gst-plugins-bad — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201702-5 Related CVEs: CVE-2017-5848 CVE-2017-5843 CVE-2016-9446 CVE-2016-9445 Upstream summary: Type: multiple issues. Status: Fixed. Affected: 1.10.2-1. Fixed in: 1.10.3-1. Group: AVG-165. Table of contents Symptom & Impact Environment & Reproduction […]

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FreeBSD 12 — sylpheed — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — sylpheed — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 October 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: claws-mail — POP3 Format String Vulnerability Related CVEs: CVE-2005-0667 CVE-2005-0926 CVE-2007-2958 Upstream summary: A Secunia Advisory reports: A format string error in the "inc_put_error()" function in src/inc.c when displaying a […]

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Common Problems 114976

RHEL 8 chronyd Clock Drift Causes TLS And Kerberos Failures

🟡 Medium   ⏱ 5–30 min  Last verified: 27 October 2019 📖 ~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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