Systemd Services

FreeBSD 13 — phpicalendar — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — phpicalendar — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: phpicalendar — cross site scripting vulnerability Related CVEs: CVE-2005-3366 Upstream summary: Francesco Ongaro reports that phpicalendar is vulnerable for a cross site scripting attack. The vulnerability is caused by improper […]

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FreeBSD 13 — firefox-ja — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — firefox-ja — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 19 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mozilla — code execution via Quicktime media-link files Related CVEs: CVE-2006-4965 CVE-2006-6077 CVE-2007-0008 CVE-2007-0009 CVE-2007-0775 CVE-2007-0776 CVE-2007-0777 CVE-2007-0778  +11 more Upstream summary: The Mozilla Foundation reports a vulnerability within the […]

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Arch Linux — matrix-synapse — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — matrix-synapse — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202011-23 Related CVEs: CVE-2020-26890 CVE-2020-26891 CVE-2019-5885 CVE-2021-29471 Upstream summary: Type: denial of service. Status: Fixed. Affected: 1.19.1-1. Fixed in: 1.20.1-1. Group: AVG-1296. Table of contents Symptom & Impact Environment & […]

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FreeBSD 13 — p5-Crypt-OpenPGP — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — p5-Crypt-OpenPGP — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: gnupg — OpenPGP symmetric encryption vulnerability Related CVEs: CVE-2005-0366 Upstream summary: Serge Mister and Robert Zuccherato reports that the OpenPGP protocol is vulnerable to a cryptographic attack when using symmetric […]

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How to Install Apache Kafka on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Apache Kafka on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install apache kafka on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. […]

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SLES 15 — libpoppler89 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libpoppler89 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 19 July 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2021-30860 CVE-2020-36023 CVE-2019-16115 CVE-2019-9545 Upstream summary: An integer overflow was addressed with improved input validation. This issue is fixed in Security Update 2021-005 Catalina, iOS […]

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

Oracle Linux 8 — python-cryptography security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-1608)

🟡 Medium   ⏱ 10–30 min  Last verified: 18 July 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1608 Related CVEs: CVE-2020-36242 CVE-2020-25659 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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Common Problems 117551

Ubuntu 20.04 LTS – time sync unstable due to chrony and systemd-timesyncd conflict – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 18 July 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 — kbd — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — kbd — 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-2020:4580 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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Common Problems 115537

SELinux Blocks Custom App Port Binding

🟡 Medium   ⏱ 5–30 min  Last verified: 18 July 2021 📖 ~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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