NetBSD 10.0 — cJSON — multiple vulnerabilities (6 CVEs) — patch and remediation guide

October 29, 2025
BSD
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🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read • Source: pkgsrc audit-packages entry Related CVEs: CVE-2023-53154 CVE-2025-57052 CVE-2023-26819 CVE-2023-50471 CVE-2023-50472 CVE-2024-31755 Upstream summary: pkgsrc audit-packages flagged cJSON<1.7.18 for vulnerability class 'heap-buffer-overflow'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2023-53154 Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

CentOS Stream 10 – Common Problem 225 – Diagnosis and Fix

October 29, 2025
Linux
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🟠 High ⏱ 5–30 min Last verified: 29 October 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 […]

How to Set Up GitLab Runner on Oracle Linux 10

October 29, 2025
Oracle Linux
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Introduction How to Set Up GitLab Runner on Oracle Linux 10 on Oracle Linux 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration […]

Oracle Linux 10 – nftables backend conflicts with legacy iptables tooling – Fix & Prevention

October 29, 2025
Linux
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🟡 Medium ⏱ 5–30 min Last verified: 29 October 2025 Affected versions: Oracle Linux 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 […]

Oracle Linux 10 – dnf cannot download metadata due to mirror TLS validation errors – Fix & Prevention

October 29, 2025
Linux
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🟠 High ⏱ 5–30 min Last verified: 29 October 2025 Affected versions: Oracle Linux 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 […]

AlmaLinux 9 — varnish — multiple vulnerabilities (4 CVEs) — patch and remediation guide

October 29, 2025
Linux
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🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read • Source: AlmaLinux ALSA ALSA-2025:8337 Related CVEs: CVE-2025-47905 CVE-2024-30156 CVE-2023-44487 CVE-2022-45060 Upstream summary: Varnish Cache is a high-performance HTTP accelerator. It stores web pages in memory so web servers don't have to create the same web […]

How to Set Up HTTP/2 in Nginx on RHEL 10

October 29, 2025
Linux
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Introduction This tutorial demonstrates how to Set Up HTTP/2 in Nginx on RHEL 10 on RHEL 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 RHEL 10 system with the default AppStream […]

How to Set a Hostname on Oracle Linux 10

October 29, 2025
Oracle Linux
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Introduction This tutorial demonstrates how to Set a Hostname on Oracle Linux 10 on Oracle Linux 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 Oracle Linux 10 system with the default […]

AlmaLinux 8 — perl-CPAN-Meta — multiple vulnerabilities (2 CVEs) — patch and remediation guide

October 29, 2025
Linux
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🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALSA-2026:8096 Related CVEs: CVE-2025-40909 CVE-2023-47038 Upstream summary: Perl is a high-level programming language that is commonly used for system administration utilities and web programming. Security Fix(es): * perl: Perl threads have a […]

Debian 13 — libntlm — vulnerability — patch and remediation guide

October 29, 2025
Linux
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🟢 Low ⏱ 5–15 min Last verified: 29 October 2025 Affected versions: Debian 13 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2019-17455 Upstream summary: Libntlm through 1.5 relies on a fixed buffer size for tSmbNtlmAuthRequest, tSmbNtlmAuthChallenge, and tSmbNtlmAuthResponse read and write operations, as demonstrated by a stack-based buffer over-read in […]

chris

NetBSD 10.0 — cJSON — multiple vulnerabilities (6 CVEs) — patch and remediation guide

CentOS Stream 10 – Common Problem 225 – Diagnosis and Fix

How to Set Up GitLab Runner on Oracle Linux 10

Oracle Linux 10 – nftables backend conflicts with legacy iptables tooling – Fix & Prevention

Oracle Linux 10 – dnf cannot download metadata due to mirror TLS validation errors – Fix & Prevention

AlmaLinux 9 — varnish — multiple vulnerabilities (4 CVEs) — patch and remediation guide

How to Set Up HTTP/2 in Nginx on RHEL 10

How to Set a Hostname on Oracle Linux 10

AlmaLinux 8 — perl-CPAN-Meta — multiple vulnerabilities (2 CVEs) — patch and remediation guide

Debian 13 — libntlm — vulnerability — patch and remediation guide

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