Linux

Oracle Linux 8 — .NET 8.0 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET 8.0 — vulnerability — patch and remediation guide (ELSA-2025-0381)

🟠 High   ⏱ 15–60 min  Last verified: 14 July 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-0381 Related CVEs: CVE-2025-21173 CVE-2025-21172 CVE-2025-21176 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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How to Use Python Virtual Environments on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Jupyter Notebook on Ubuntu 24.04

Jupyter Notebook is an interactive web-based computing environment for Python. It is widely used in data science, machine learning, and scientific research. This guide installs Jupyter Notebook on Ubuntu 24.04 LTS and configures it for remote access. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Python 3.12 installed A user account […]

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AlmaLinux 8 — PyYAML — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — PyYAML — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2025:23530 Related CVEs: CVE-2024-11168 CVE-2024-5642 CVE-2024-9287 CVE-2025-0938 CVE-2025-4138 CVE-2025-4330 CVE-2025-4435 CVE-2025-4516  +12 more Upstream summary: Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic […]

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Common Problems 127201

CentOS Stream 10 – Common Problem 224 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 13 July 2025 Affected versions: CentOS Stream 10 📖 ~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 Configure PHP Session Handling on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Configure PHP Session Handling on CentOS Stream 10

Introduction This tutorial demonstrates how to Configure PHP Session Handling on CentOS Stream 10 on CentOS Stream 10. 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 10 system with the […]

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Debian 12 — python-ldap — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — python-ldap — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 13 July 2025 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-46823 CVE-2025-61911 CVE-2025-61912 Upstream summary: python-ldap before 3.4.0 is vulnerable to a denial of service when ldap.schema is used for untrusted schema definitions, because of a regular expression […]

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Debian 12 — libhibernate-validator4-java — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libhibernate-validator4-java — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 July 2025 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-35036 Upstream summary: Hibernate Validator before 6.2.0 and 7.0.0, by default and depending how it is used, may interpolate user-supplied input in a constraint violation message with Expression […]

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Ubuntu 18.04 — zvbi — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — zvbi — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 13 July 2025 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7367-1 Related CVEs: CVE-2025-2173 CVE-2025-2174 CVE-2025-2175 CVE-2025-2176 CVE-2025-2177 Upstream summary: It was discovered that zvbi incorrectly handled memory when processing user input. An attacker could possibly use this issue to […]

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AlmaLinux 9 — libnbd — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — libnbd — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2024:6757 Related CVEs: CVE-2024-7383 CVE-2023-5215 CVE-2023-5871 Upstream summary: Network Block Device (NBD) is a protocol for accessing Block Devices (hard disks and disk-like devices) over a Network. The libnbd is a userspace […]

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Ubuntu 22.04 — opencc — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — opencc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 July 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7972-1 Related CVEs: CVE-2025-15536 Upstream summary: It was discovered that OpenCC incorrectly handled truncated UTF-8 input. An attacker could possibly use this issue to cause OpenCC to crash, resulting in […]

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