May 2021 - Page 4 of 69

Arch Linux — opensc — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — opensc — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202011-27 Related CVEs: CVE-2020-26572 CVE-2020-26571 CVE-2020-26570 CVE-2019-6502 CVE-2019-19481 CVE-2019-19480 CVE-2019-19479 CVE-2019-15946  +1 more Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 0.20.0-3. Fixed in: 0.21.0-1. Group: AVG-1298. Table of […]

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Arch Linux — haproxy — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — haproxy — multiple vulnerabilities (3 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-202004-7 Related CVEs: CVE-2020-11100 CVE-2018-20103 CVE-2018-20102 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 2.1.3-1. Fixed in: 2.1.4-1. Group: AVG-1124. Table of contents Symptom & Impact Environment & Reproduction […]

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Common Problems 114445

RHEL 9: NetworkManager Interface Not Coming Up After Reboot

🟡 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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IBM AIX 7.2 — CVE-2021-29841 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2021-29841 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 25 May 2026 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2021-29841, IBM Support Bulletin CVE: CVE-2021-29841 NVD summary: IBM Financial Transaction Manager 3.2.4 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus […]

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FreeBSD 12 — postgresql96-server — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — postgresql96-server — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: PostgreSQL — Possible man-in-the-middle attacks Related CVEs: CVE-2016-5423 CVE-2016-5424 CVE-2017-15098 CVE-2017-15099 CVE-2017-7546 CVE-2017-7547 CVE-2017-7548 CVE-2018-1052  +11 more Upstream summary: The PostgreSQL Project reports: CVE-2021-23214: A man-in-the-middle with the ability to […]

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How to Set Up Uptime Kuma on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up Uptime Kuma on FreeBSD 13

Introduction This guide explains how to Set Up Uptime Kuma 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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FreeBSD 13 — sugarcrm — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — sugarcrm — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: sugarcrm — multiple vulnerabilities Related CVEs: CVE-2017-14508 CVE-2017-14509 CVE-2017-14510 Upstream summary: sugarcrm developers report: An issue was discovered in SugarCRM before 7.7.2.3, 7.8.x before 7.8.2.2, and 7.9.x before 7.9.2.0 (and […]

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Demystifying The Service Worker Lifecycle — step-by-step DevOps tutorial on Progressive Robot

Demystifying The Service Worker Lifecycle

Service workers play a very vital role in Progressive Web Apps (PWA), as they are responsible for offline caching, push notifications, background sync etc. In this article, we’ll be demystifying the service worker lifecycle and what can be done at each stage of the lifecycle.

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