Security Hardening

Amazon Linux 2023 — gnutls — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — gnutls — multiple vulnerabilities (12 CVEs) — patch and remediation guide

  • July 25, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2023-171 Related CVEs: CVE-2023-0361 CVE-2025-14831 CVE-2025-32988 CVE-2025-32989 CVE-2025-32990 CVE-2025-6395 CVE-2024-12243 CVE-2024-28834  +4 more Upstream summary: A timing side-channel vulnerability was found in RSA ClientKeyExchange messages in GnuTLS. This side-channel may […]

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Rocky Linux 10 — shadow-utils — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 10

Rocky Linux 10 — shadow-utils — vulnerability — patch and remediation guide

  • July 25, 2025
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 10 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2025:20145 Related CVEs: CVE-2024-56433 Upstream summary: The shadow-utils packages include programs for converting UNIX password files to the shadow password format, as well as utilities for managing user and group […]

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How to Monitor MySQL with Prometheus on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Monitor MySQL with Prometheus on Oracle Linux 10

Introduction How to Monitor MySQL with Prometheus 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 […]

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Common Problems 111216

Windows Server 2025 — SQL Server connection timeout from application servers after Windows Update — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 25 July 2025 Affected versions: Windows Server 2025 📖 ~2 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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Rocky Linux 8 — nfs-utils — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — nfs-utils — vulnerability — patch and remediation guide

  • July 25, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:3938 Related CVEs: CVE-2025-12801 Upstream summary: The nfs-utils packages provide a daemon for the kernel Network File System (NFS) server and related tools, which provides better performance than the traditional […]

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Windows Server 2022 — KB5066872 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5066872 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5066872 • MSRC update-guide entry Related CVEs: CVE-2016-9535 CVE-2025-24990 CVE-2025-24052 CVE-2025-55335 CVE-2025-55700 CVE-2025-55701 CVE-2025-58717 CVE-2025-58732  +12 more Affected components: Windows Server 2022 Microsoft summary: tif_predict.h and tif_predict.c in libtiff 4.0.6 have assertions […]

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Ubuntu 24.04 — udisks2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — udisks2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • July 25, 2025
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 July 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7723-1 Related CVEs: CVE-2025-8067 CVE-2025-6019 Upstream summary: Michael Imfeld discovered that UDisks did not check the validity of input data correctly when handling files for loop devices. An attacker could […]

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Oracle Linux 10 — open-vm-tools — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — open-vm-tools — vulnerability — patch and remediation guide (ELSA-2025-17429)

  • July 25, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 July 2025 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-17429 Related CVEs: CVE-2025-41244 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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openSUSE Tumbleweed — kubevirt-tests — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — kubevirt-tests — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • July 25, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2023:1967-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-26484 CVE-2025-64433 CVE-2024-33394 CVE-2025-64437 Upstream summary: KubeVirt is a virtual machine management add-on for Kubernetes. In versions 0.59.0 and prior, if a malicious user has […]

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Alpine Linux 3.20 — gdk-pixbuf — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — gdk-pixbuf — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • July 25, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 2.42.8-r0 📖 ~4 min read  •  Source: Alpine secdb entry — gdk-pixbuf 2.42.8-r0 Related CVEs: CVE-2021-44648 CVE-2020-29385 CVE-2022-48622 CVE-2017-6311 CVE-2017-6312 CVE-2017-6314 Upstream summary: Alpine main repository for vv3.20 ships gdk-pixbuf 2.42.8-r0 which addresses CVE-2021-44648. Table of […]

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