Linux

How to Install Docker Compose on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Docker Compose on RHEL 9

Docker Compose is a tool for defining and running multi-container Docker applications from a single YAML configuration file (docker-compose.yml or compose.yaml). Instead of manually running multiple docker run commands and configuring networks and volumes by hand, Docker Compose allows you to declare all services (web application, database, cache, message queue) in one file and start […]

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Oracle Linux 9 — freeradius — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — freeradius — security and stability fixes — required update (ELSA-2023-2166)

🟡 Medium   ⏱ 10–30 min  Last verified: 21 August 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2166 Related CVEs: CVE-2022-41860 CVE-2022-41859 CVE-2022-41861 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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Common Problems 120104

Debian 12 Kernel Upgrade Leaves Old Kernels Unmanaged

🟢 Low   ⏱ 5–30 min  Last verified: 21 August 2023 Affected versions: Debian 12 📖 ~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 & […]

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How to Set Up a Bond Network Interface on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up a Bond Network Interface on CentOS Stream 9

Introduction This tutorial demonstrates how to Set Up a Bond Network Interface on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system […]

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Debian 12 — opendkim — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — opendkim — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-35766 CVE-2022-48521 Upstream summary: The test suite in libopendkim in OpenDKIM through 2.10.3 allows local users to gain privileges via a symlink attack against the /tmp/testkeys file (related […]

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Debian 12 — adequate — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — adequate — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-6409 Upstream summary: Debian adequate before 0.8.1, when run by root with the –user option, allows local users to hijack the tty and possibly gain privileges via the […]

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Debian 12 — fabric — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — fabric — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-2185 Upstream summary: Fabric before 1.1.0 allows local users to overwrite arbitrary files via a symlink attack on (1) a /tmp/fab.*.tar file or (2) certain other files in […]

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Debian 12 — loggerhead — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — loggerhead — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-0728 Upstream summary: Cross-site scripting (XSS) vulnerability in templatefunctions.py in Loggerhead before 1.18.1 allows remote authenticated users to inject arbitrary web script or HTML via a filename, which […]

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Debian 12 — magics++ — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — magics++ — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2010-3393 Upstream summary: magics-config in Magics++ 2.10.0 places a zero-length directory name in the LD_LIBRARY_PATH, which allows local users to gain privileges via a Trojan horse shared library […]

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Debian 12 — kotlin — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — kotlin — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-29582 Upstream summary: In JetBrains Kotlin before 1.4.21, a vulnerable Java API was used for temporary file and folder creation. An attacker was able to read data from […]

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