Linux

How to Implement Network Segmentation on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Implement Network Segmentation on CentOS Stream 10

Introduction This tutorial demonstrates how to Implement Network Segmentation 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 default […]

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Debian 12 — ckeditor3 — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ckeditor3 — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 May 2025 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-5191 CVE-2018-17960 CVE-2021-33829 CVE-2021-41165 CVE-2022-24728 CVE-2023-28439 CVE-2024-24815 CVE-2024-24816 Upstream summary: Cross-site scripting (XSS) vulnerability in the Preview plugin before 4.4.3 in CKEditor allows remote attackers to inject arbitrary […]

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Debian 11 — php-horde-imp — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — php-horde-imp — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 May 2025 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-6640 CVE-2014-4945 CVE-2014-4946 CVE-2025-30349 Upstream summary: Cross-site scripting (XSS) vulnerability in Horde Internet Mail Program (IMP) before 5.0.22, as used in Horde Groupware Webmail Edition before 4.0.9, allows […]

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Common Problems 113936

RHEL 10 Dracut Initramfs Missing Storage Driver After Update

🔴 Critical   ⏱ 5–30 min  Last verified: 29 May 2025 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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Ubuntu 16.04 — uriparser — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — uriparser — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 May 2025 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7356-1 Related CVEs: CVE-2024-34402 CVE-2024-34403 CVE-2021-46141 CVE-2021-46142 CVE-2018-19198 CVE-2018-19199 CVE-2018-19200 CVE-2018-20721 Upstream summary: It was discovered that uriparser did not correctly handle certain inputs, which could lead to an integer […]

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Rocky Linux 9 — opentelemetry-collector — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 9

Rocky Linux 9 — opentelemetry-collector — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 9 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:4177 Related CVEs: CVE-2025-61726 CVE-2025-68121 CVE-2025-61729 CVE-2025-68156 Upstream summary: Collector with the supported components for a Rocky Enterprise Software Foundation build of OpenTelemetry Security Fix(es): * golang: net/url: Memory exhaustion […]

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Alpine Linux 3.19 — py3-rencode — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — py3-rencode — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 1.0.6-r7 📖 ~4 min read  •  Source: Alpine secdb entry — py3-rencode 1.0.6-r7 Related CVEs: CVE-2021-40839 Upstream summary: Alpine community repository for vv3.19 ships py3-rencode 1.0.6-r7 which addresses CVE-2021-40839. Table of contents Symptom & Impact Environment […]

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Ubuntu 22.04 — cjson — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — cjson — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 May 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7973-1 Related CVEs: CVE-2023-53154 CVE-2025-57052 CVE-2023-26819 CVE-2023-50471 CVE-2023-50472 CVE-2024-31755 Upstream summary: It was discovered that cJSON incorrectly handled parsing large numbers. An attacker could possibly use this issue to cause […]

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Ubuntu 24.04 — fort-validator — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — fort-validator — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 May 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7813-1 Related CVEs: CVE-2024-45237 CVE-2024-45234 CVE-2024-48943 CVE-2024-45236 CVE-2024-45238 CVE-2024-45239 CVE-2024-45235 Upstream summary: Niklas Vogel and Haya Schulmann discovered that FORT Validator did not perform proper input validation when parsing certain […]

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