Security Hardening

SLES 12 — gstreamer-plugins-good — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — gstreamer-plugins-good — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • October 28, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 28 October 2025 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory RHSA-2024:11122 (see also SUSE bugzilla) Related CVEs: CVE-2024-47540 CVE-2024-47537 CVE-2025-47183 CVE-2024-47543 CVE-2024-47545 CVE-2024-47596 CVE-2024-47597 CVE-2024-47599  +12 more Upstream summary: GStreamer is a library for constructing graphs of media-handling components. An uninitialized stack […]

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Oracle Linux 10 — .NET 9.0 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — .NET 9.0 — vulnerability — patch and remediation guide (ELSA-2025-18153)

  • October 28, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 28 October 2025 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-18153 Related CVEs: CVE-2025-55247 CVE-2025-55248 CVE-2025-55315 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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Common Problems 119430

Debian 13 apt NO_PUBKEY and Repository Signature Failures

  • October 28, 2025
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 28 October 2025 📖 ~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 & Cross-Refs References & Further […]

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Windows Server 2019 — KB5050013 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5050013 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5050013 • MSRC update-guide entry Related CVEs: CVE-2025-21294 CVE-2025-21295 CVE-2025-21296 CVE-2025-21298 CVE-2025-21307 CVE-2025-21411 CVE-2025-21413 CVE-2025-21210  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft .NET Framework 3.5 AND 4.8 on […]

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How to Perform a Minimal Installation of Debian 13 Trixie — step-by-step Debian 13 tutorial on Progressive Robot

How to Perform a Minimal Installation of Debian 13 Trixie

  • October 28, 2025
  • Linux
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Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up perform a minimal installation of debian 13 trixie 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 […]

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NetBSD 10.0 — cmake — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — cmake — vulnerability — patch and remediation guide

  • October 27, 2025
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2025-9301 Upstream summary: pkgsrc audit-packages flagged cmake<4.1.0nb1 for vulnerability class 'denial-of-service'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-9301 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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How to Configure Filesystem Quotas on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Filesystem Quotas on Debian 13

  • October 27, 2025
  • Linux
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Introduction How to Configure Filesystem Quotas on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 12. This […]

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NetBSD 10.0 — wget2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — wget2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • October 27, 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-2025-69194 CVE-2025-69195 Upstream summary: pkgsrc audit-packages flagged wget2<2.2.1 for vulnerability class 'directory-traversal'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-69194 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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FreeBSD 12 — p5-Catalyst-Authentication-Credential-HTTP — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — p5-Catalyst-Authentication-Credential-HTTP — vulnerability — patch and remediation guide

  • October 27, 2025
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 27 October 2025 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: p5-Catalyst-Authentication-Credential-HTTP — Insecure source of randomness Related CVEs: CVE-2025-40920 Upstream summary: perl-catalyst project reports: Catalyst::Authentication::Credential::HTTP versions 1.018 and earlier for Perl generate nonces using the Perl Data::UUID library. * Data::UUID […]

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