Linux

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2021-5013)

🟠 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 – […]

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Oracle Linux 8 — olcne istio istio kubernetes — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — olcne istio istio kubernetes — vulnerability — patch and remediation guide (ELSA-2021-9546)

🟠 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 – […]

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How to Deploy Applications with Docker Compose on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Deploy Applications with Docker Compose on RHEL 8

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 […]

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Alpine Linux edge — zsh — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — zsh — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 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 […]

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How To Install WordPress on Ubuntu 20.04 with a LAMP Stack — step-by-step Linux tutorial on Progressive Robot

How To Install WordPress on Ubuntu 20.04 with a LAMP Stack

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.

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Oracle Linux 8 — tpm2-tss security and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — tpm2-tss security and — enhancement update — new behaviour and fixes (ELSA-2023-7166)

🟢 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 […]

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AlmaLinux 8 — crash-trace-command — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — crash-trace-command — 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-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 […]

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Debian 11 — udfclient — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — udfclient — vulnerability — patch and remediation guide

🟢 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 […]

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Debian 11 — libxt — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libxt — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-2002 CVE-2013-2005 Upstream summary: Buffer overflow in X.org libXt 1.1.3 and earlier allows X servers to cause a denial of service (crash) and possibly execute arbitrary code via […]

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