Security Hardening

Common Problems 114085

RHEL 10 – tuned profile change causes unexpected CPU throttling

🟡 Medium   ⏱ 5–30 min  Last verified: 24 June 2026 Affected versions: RHEL 10 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 & […]

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How to Configure GELI Disk Encryption on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure GELI Disk Encryption on FreeBSD 15

Introduction How to Configure GELI Disk Encryption on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]

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Amazon Linux 2023 — cuda-runtime-12-9 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — cuda-runtime-12-9 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023NVIDIA-2025-212 Related CVEs: CVE-2025-23272 CVE-2025-23247 Upstream summary: NVIDIA nvJPEG library contains a vulnerability where an attacker can cause an out-of-bounds read by means of a specially crafted JPEG file. A […]

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How to Configure HashiCorp Vault on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure HashiCorp Vault on FreeBSD 15

Introduction Deploying configure hashicorp vault on a FreeBSD 15 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + ports approach […]

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Windows Server 2022 — KB5077212 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5077212 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5077212 • MSRC update-guide entry Related CVEs: CVE-2026-21519 CVE-2026-21248 CVE-2026-21247 CVE-2026-21242 CVE-2026-21234 CVE-2026-21236 CVE-2026-21533 CVE-2026-21513  +12 more Affected components: Windows Server 2022 Windows Server 2022, 23H2 Edition (Server Core installation) Microsoft summary: […]

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FreeBSD 13 — github-release-monitor — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — github-release-monitor — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 June 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: github-release-monitor — multiple vulnerabilities Related CVEs: CVE-2025-55183 CVE-2025-55184 Upstream summary: https://nextjs.org/blog/security-update-2025-12-11 reports: Description (Medium) Source Code Exposure: CVE-2025-55183 A specifically crafted HTTP request can cause a Server Function to return […]

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FreeBSD 15 — mksh — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — mksh — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 June 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mksh — TTY attachment privilege escalation Related CVEs: CVE-2008-1845 Upstream summary: Secunia reports: The vulnerability is caused due to an error when attaching to a TTY via the -T command […]

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FreeBSD 15 — newsfetch — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — newsfetch — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 June 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: newsfetch — server response buffer overflow vulnerability Related CVEs: CVE-2005-0132 Upstream summary: The newsfetch program uses the sscanf function to read information from server responses into static memory buffers. Unfortunately […]

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FreeBSD 15 — gtk — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — gtk — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 24 June 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: gdk-pixbuf — image decoding vulnerabilities Related CVEs: CVE-2004-0782 CVE-2004-0783 CVE-2004-0788 Upstream summary: Chris Evans discovered several flaws in the gdk-pixbuf XPM image decoder: Heap-based overflow in pixbuf_create_from_xpm Stack-based overflow in […]

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