Security Hardening

Common Problems 115599

RHEL 7 swap not activated at boot due to incorrect UUID in fstab

🟡 Medium   ⏱ 5–30 min  Last verified: 29 July 2019 Affected versions: RHEL 7 📖 ~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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Common Problems 115039

RHEL 8 – NFS Mount Access Denied by firewalld and SELinux Policy

🟡 Medium   ⏱ 5–30 min  Last verified: 29 July 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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Common Problems 112988

Windows Server 2016 – Filesystem minifilter altitude conflict causes access denied spikes – Fix and Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 29 July 2019 Affected versions: Windows Server 2016 📖 ~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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FreeBSD 12 — py32-radicale — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py32-radicale — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 July 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: radicale — multiple vulnerabilities Related CVEs: CVE-2015-8747 CVE-2015-8748 Upstream summary: Radicale reports: The multifilesystem backend allows access to arbitrary files on all platforms. Prevent regex injection in rights management. Table […]

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openSUSE Tumbleweed — libmms0 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libmms0 — 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-2014-2892 Upstream summary: Heap-based buffer overflow in the get_answer function in mmsh.c in libmms before 0.6.4 allows remote attackers to execute arbitrary code via a […]

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How to Set Up Zabbix on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Set Up Zabbix on SLES 12

Introduction This tutorial covers How to Set Up Zabbix 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 refresh […]

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

FreeBSD 12 — amarok — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 July 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: amarok — multiple vulnerabilities Related CVEs: CVE-2009-0135 CVE-2009-0136 Upstream summary: Secunia reports: Tobias Klein has reported some vulnerabilities in Amarok, which potentially can be exploited by malicious people to compromise […]

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FreeBSD 12 — bitmessage — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — bitmessage — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 July 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: bitmessage — remote code execution vulnerability Upstream summary: Bitmessage developers report: A remote code execution vulnerability has been spotted in use against some users running PyBitmessage v0.6.2. The cause was […]

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FreeBSD 12 — py36-notebook — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py36-notebook — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 July 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Jupyter notebook — open redirect vulnerability Related CVEs: CVE-2018-8768 CVE-2019-10255 Upstream summary: Jupyter blog: Login pages tend to take a parameter for redirecting back to a page after successful login, […]

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Amazon Linux 2 — yum — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — yum — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2316 Upstream summary: Amazon Linux customers may have experienced an issue with our repository metadata in all regions. During this time, EC2 instances accessing metadata from our repositories experienced 500 […]

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