🟢 Low ⏱ 5–15 min Last verified: 28 November 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5614-1 Related CVEs: CVE-2021-3782 Upstream summary: It was discovered that Wayland incorrectly handled reference counting certain objects. An attacker could use this issue to cause Wayland to crash, resulting in […]
🟠 High ⏱ 15–60 min Last verified: 28 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-5013 Related CVEs: CVE-2021-43541 CVE-2021-43546 CVE-2021-43536 CVE-2021-43539 CVE-2021-43538 CVE-2021-43542 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
🟠 High ⏱ 15–60 min Last verified: 28 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-9546 Related CVEs: CVE-2021-32777 CVE-2021-25741 CVE-2021-32779 CVE-2021-32780 CVE-2021-32781 CVE-2021-32778 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
Docker Compose simplifies running multi-container applications by defining every service, network, and volume in a single docker-compose.yml file. Instead of typing long docker run commands for each container, you declare the desired state and let Compose handle the orchestration. On RHEL 8 with Docker CE installed, Docker Compose V2 ships as a plugin and is […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 5.8.1-r0 📖 ~4 min read • Source: Alpine secdb entry — zsh 5.8.1-r0 Related CVEs: CVE-2021-45444 CVE-2019-20044 CVE-2018-1083 CVE-2018-1071 Upstream summary: Alpine main repository for vedge ships zsh 5.8.1-r0 which addresses CVE-2021-45444. Table of contents Symptom […]
WordPress is an extremely popular open-source technology and WordPress sites represent 36% of all websites that are currently online. This tutorial is intended for those who are comfortable with system administration or for those who are interested in learning how to administer your own WordPress instance on the server side. In this guide, we’ll install and set up WordPress via LAMP on a Linux Ubuntu 20.04 server.
🟢 Low ⏱ 5–15 min Last verified: 27 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2023-7166 Related CVEs: CVE-2023-22745 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALBA-2021:1943 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 […]
🟢 Low ⏱ 5–15 min Last verified: 27 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2017-8305 Upstream summary: The UDFclient (before 0.8.8) custom strlcpy implementation has a buffer overflow. UDFclient's strlcpy is used only on systems with a C library (e.g., glibc) that […]
This articles covers how to install Nginx, a web server, on a CentOS 7 virtual server. This can be done with the CentOS package installer, yum.
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