June 2021 - Page 52 of 66

Arch Linux — lz4 — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — lz4 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202105-27 Related CVEs: CVE-2021-3520 Upstream summary: Type: denial of service. Status: Fixed. Affected: 1:1.9.3-1. Fixed in: 1:1.9.3-2. Group: AVG-1889. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Configure Apache mod_security on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure Apache mod_security on FreeBSD 13

Introduction This guide explains how to Configure Apache mod_security 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 privilege […]

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Common Problems 114446

systemctl Failed Unit and Start-Limit-Hit on RHEL 9

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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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openSUSE Tumbleweed — cgal-doc — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — cgal-doc — 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 security advisory (see also SUSE bugzilla) Related CVEs: CVE-2020-28601 CVE-2020-35636 Upstream summary: A code execution vulnerability exists in the Nef polygon-parsing functionality of CGAL libcgal CGAL-5.1.1. An oob read vulnerability exists in Nef_2/PM_io_parser.h […]

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FreeBSD 13 — linux-f8-pango — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — linux-f8-pango — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: pango — integer overflow Related CVEs: CVE-2009-1194 Upstream summary: oCERT reports: Pango suffers from a multiplicative integer overflow which may lead to a potentially exploitable, heap overflow depending on the […]

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Ubuntu 18.04 — kmail — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — kmail — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7731-1 Related CVEs: CVE-2017-17689 CVE-2020-11880 Upstream summary: Damian Poddebniak, Christian Dresen, Jens Müller, Fabian Ising, Sebastian Schinzel, Simon Friedberger, Juraj Somorovsky, and Jörg Schwenk discovered that KMail could be made […]

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How to Configure restic Backup Solution on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure restic Backup Solution on Debian 9

Introduction How to Configure restic Backup Solution on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. […]

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