chris

Ubuntu 18.04 — znc — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — znc — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 June 2025 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6990-1 Related CVEs: CVE-2024-39844 CVE-2019-12816 Upstream summary: Johannes Kuhn (DasBrain) discovered that znc incorrectly handled user input under certain operations. An attacker could possibly use this issue to execute arbitrary […]

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Red Hat Enterprise Linux 9 — mingw-glib2 — vulnerability — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 9

Red Hat Enterprise Linux 9 — mingw-glib2 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 9 📖 ~4 min read  •  Source: Red Hat advisory RHSA RHSA-2026:18705 Related CVEs: CVE-2025-13601 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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Oracle Linux 8 — kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel — vulnerability — patch and remediation guide (ELSA-2025-13960)

🟠 High   ⏱ 15–60 min  Last verified: 21 June 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-13960 Related CVEs: CVE-2025-22097 CVE-2025-38250 CVE-2025-37914 CVE-2025-38380 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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openSUSE Leap 15.6 — libiniparser1 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — libiniparser1 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:14836-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-0633 Upstream summary: Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory Table of contents Symptom & […]

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Windows Server 2016 — KB5041026 — security update — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5041026 — security update — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5041026 • MSRC update-guide entry Related CVEs: CVE-2024-38081 Affected components: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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openSUSE Leap 15.5 — MozillaFirefox — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — MozillaFirefox — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2024:14542-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-11691 CVE-2024-11692 CVE-2024-11693 CVE-2024-11694 CVE-2024-11695 CVE-2024-11696 CVE-2024-11697 CVE-2024-11698  +12 more Upstream summary: Certain WebGL operations on Apple silicon M series devices could have lead […]

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Common Problems 111036

Windows Server 2025 DHCP Server Scope Exhaustion Causing Address Assignment Failures — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 21 June 2025 Affected versions: Windows Server 2025 📖 ~3 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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openSUSE Leap 15.5 — package — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — package — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:0118-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-12084 CVE-2024-53908 CVE-2024-49195 CVE-2024-39338 CVE-2024-6409 CVE-2024-35325 CVE-2024-35326 CVE-2024-4577  +12 more Upstream summary: A heap-based buffer overflow flaw was found in the rsync daemon. This […]

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How to Configure IIS CORS Headers on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Configure IIS CORS Headers on Windows Server 2025

How to Configure IIS CORS Headers on Windows Server 2025 Cross-Origin Resource Sharing (CORS) is a browser security mechanism that controls how web pages hosted on one origin (scheme + hostname + port) can request resources from a different origin. When a JavaScript application served from https://app.example.com tries to call an API at https://api.example.com, the […]

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