chris

How to Enable HTTPS with Let's Encrypt on Apache RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Enable HTTPS with Let’s Encrypt on Apache RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying enable https with let’s encrypt on apache rhel 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Enable HTTPS with Let’s Encrypt on Apache RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld […]

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Debian 13 — lmbench — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — lmbench — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 October 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-4968 Upstream summary: The (1) rccs and (2) STUFF scripts in lmbench 3.0-a7 allow local users to overwrite arbitrary files via a symlink attack on a /tmp/sdiff.##### temporary […]

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How to Configure Bridge Networking on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Bridge Networking on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up configure bridge networking on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration will […]

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Alpine Linux edge — fetchmail — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — fetchmail — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 6.5.6-r0 📖 ~4 min read  •  Source: Alpine secdb entry — fetchmail 6.5.6-r0 Related CVEs: CVE-2025-61962 CVE-2021-39272 CVE-2021-36386 Upstream summary: Alpine community repository for vedge ships fetchmail 6.5.6-r0 which addresses CVE-2025-61962. Table of contents Symptom & […]

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Debian 13 — crossfire-maps — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — crossfire-maps — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 October 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-4908 Upstream summary: maps/Info/combine.pl in CrossFire crossfire-maps 1.11.0 allows local users to overwrite arbitrary files via a symlink attack on a temporary file. Table of contents Symptom & […]

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Common Problems 119646

Debian 13 PostgreSQL Fails to Start After Major Package Update

🔴 Critical   ⏱ 5–30 min  Last verified: 14 October 2025 Affected versions: Debian 13 📖 ~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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AlmaLinux 8 — xmlunit — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — xmlunit — multiple vulnerabilities (2 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-2025:9318 Related CVEs: CVE-2019-10086 CVE-2025-48734 Upstream summary: The javapackages-tools packages provide macros and scripts to support Java packaging. Security Fix(es): * apache-commons-beanutils: does not suppresses the class property in PropertyUtilsBean by default […]

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Debian 13 — node-chart.js — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — node-chart.js — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 October 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-7746 Upstream summary: This affects the package chart.js before 2.9.4. The options parameter is not properly sanitized when it is processed. When the options are processed, the existing options […]

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Debian 12 — golang-golang-x-oauth2 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — golang-golang-x-oauth2 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 October 2025 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-22868 Upstream summary: An attacker can pass a malicious malformed token which causes unexpected memory to be consumed during parsing. Table of contents Symptom & Impact Environment & […]

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Ubuntu 18.04 — ruby-saml — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — ruby-saml — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 October 2025 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7409-1 Related CVEs: CVE-2025-25291 CVE-2025-25292 CVE-2025-25293 CVE-2016-5697 CVE-2017-11428 CVE-2024-45409 Upstream summary: It was discovered that ruby-saml did not correctly handle XML parsing. An attacker could possibly use this issue to […]

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