Systemd Services

Common Problems 113561

Windows Server 2012 R2 — NPS service not processing RADIUS requests — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 2 October 2021 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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FreeBSD 13 — rubygem18-rdoc — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — rubygem18-rdoc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Ruby — XSS exploit of RDoc documentation generated by rdoc Related CVEs: CVE-2013-0256 Upstream summary: Ruby developers report: RDoc documentation generated by rdoc bundled with ruby are vulnerable to an […]

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FreeBSD 13 — plans — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — plans — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: plans — multiple vulnerabilities Upstream summary: Secunia reports: A vulnerability has been reported in Plans, which can be exploited by malicious people to conduct SQL injection attacks. Input passed to […]

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AlmaLinux 8 — vhostmd — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — vhostmd — 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-2021:1681 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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Debian 11 — unalz — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — unalz — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-3862 CVE-2006-0950 Upstream summary: Buffer overflow in unalz before 0.53 allows remote attackers to execute arbitrary code via long file names in ALZ archives. Table of contents Symptom […]

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How to Set Up pf Firewall on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up pf Firewall on FreeBSD 13

Introduction This guide explains how to Set Up pf Firewall on FreeBSD 13 on FreeBSD 13. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 2 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-3050 CVE-2019-19630 CVE-2021-20308 CVE-2021-23158 CVE-2021-23165 CVE-2021-23180 CVE-2021-23191 CVE-2021-23206  +12 more Upstream summary: Buffer overflow in the set_page_size function in util.cxx in HTMLDOC 1.8.27 and earlier allows context-dependent attackers […]

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Debian 11 — sddm — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — sddm — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 2 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-7271 CVE-2014-7272 CVE-2015-0856 CVE-2018-14345 CVE-2020-28049 Upstream summary: Simple Desktop Display Manager (SDDM) before 0.10.0 allows local users to log in as user "sddm" without authentication. Table of contents […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 2 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: jasper — multiple vulnerabilities Related CVEs: CVE-2008-3520 CVE-2008-3522 CVE-2011-4516 CVE-2011-4517 CVE-2014-8137 CVE-2014-8138 CVE-2014-8157 CVE-2014-8158  +12 more Upstream summary: JasPer Releases: – Fix memory-related bugs in the JPEG-2000 codec resulting from […]

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AlmaLinux 8 — sed — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — sed — 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-2022:1996 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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