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.
🟡 Medium ⏱ 10–30 min Last verified: 30 May 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5664-1 Related CVEs: CVE-2016-10506 CVE-2016-7445 CVE-2016-9112 CVE-2017-17479 CVE-2018-18088 CVE-2020-27824 Upstream summary: It was discovered that OpenJPEG did not properly handle PNM headers, resulting in a null pointer dereference. A remote […]
🟠 High ⏱ 15–60 min Last verified: 30 May 2021 Affected versions: SLES 12 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2022:3355-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-27023 CVE-2020-7942 CVE-2011-3848 CVE-2011-3872 CVE-2012-3864 CVE-2012-3865 CVE-2012-3866 CVE-2013-3567 +6 more Upstream summary: A flaw was discovered in Puppet Agent and Puppet Server that may result […]
🟡 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 […]
Uma versão anterior desse tutorial foi escrita por Hazel Virdó O Let’s Encrypt é uma Autoridade de Certificação (CA) que fornece uma maneira fácil de obter e instalar [certificados gratuitos…
🔴 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 […]
How to Set Up Windows Server 2019 with Chef Chef is an open-source configuration management platform that automates the provisioning, configuration, and management of infrastructure. Chef uses Ruby-based DSL “recipes” and “cookbooks” to describe how servers should be configured. For Windows Server 2019, Chef provides full support through the Chef Infra Client agent, enabling the […]
🟡 Medium ⏱ 10–30 min Last verified: 29 May 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-1586 Related CVEs: CVE-2020-9983 CVE-2019-13012 CVE-2020-13584 CVE-2020-9951 CVE-2020-9948 CVE-2020-13543 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALBA-2020:4678 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 […]
Introduction How to Manage Users and Groups on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]
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