Security Hardening

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

Alpine Linux 3.20 — nextcloud-client — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • May 16, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 3.8.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — nextcloud-client 3.8.1-r0 Related CVEs: CVE-2023-28999 CVE-2023-23942 CVE-2023-28997 CVE-2023-28998 CVE-2022-41882 CVE-2023-22472 Upstream summary: Alpine community repository for vv3.20 ships nextcloud-client 3.8.1-r0 which addresses CVE-2023-28999. Table of […]

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Windows Server 2019 — KB5034176 — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5034176 — multiple vulnerabilities (16 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5034176 • MSRC update-guide entry Related CVEs: CVE-2024-20674 CVE-2024-20654 CVE-2024-20657 CVE-2024-20680 CVE-2024-20683 CVE-2024-21313 CVE-2024-20653 CVE-2024-20655  +8 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]

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Oracle Linux 9 — nodejs:18 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — nodejs:18 — vulnerability — patch and remediation guide (ELSA-2024-2779)

  • May 16, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 16 May 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-2779 Related CVEs: CVE-2024-28182 CVE-2024-25629 CVE-2024-27982 CVE-2024-27983 CVE-2024-22025 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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FreeBSD 14 — postgresql-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — postgresql-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • May 16, 2025
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 16 May 2025 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: PostgreSQL server — Potentially allowing authenicated database users to see data that they shouldn't. Related CVEs: CVE-2005-0227 CVE-2005-0244 CVE-2005-0245 CVE-2005-0246 CVE-2005-0247 CVE-2006-0553 CVE-2006-2313 CVE-2006-2314  +12 more Upstream summary: PostgreSQL project […]

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Alpine Linux 3.19 — mpfr4 — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — mpfr4 — vulnerability — patch and remediation guide

  • May 16, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 4.2.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — mpfr4 4.2.1-r0 Related CVEs: CVE-2023-25139 Upstream summary: Alpine main repository for vv3.19 ships mpfr4 4.2.1-r0 which addresses CVE-2023-25139. Table of contents Symptom & Impact Environment […]

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NetBSD 9.4 — gpsd — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — gpsd — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • May 16, 2025
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2018-17937 CVE-2023-43628 CVE-2025-67268 CVE-2025-67269 Upstream summary: pkgsrc audit-packages flagged gpsd<2.37nb1 for vulnerability class 'remote-information-exposure'. Reference: http://developer.berlios.de/bugs/?func=detailbug&bug_id=14707&group_id=2116 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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Common Problems 111114

Windows Server 2025 — Mandatory profile not applying after Group Policy change — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 16 May 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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openSUSE Leap 15.6 — dpkg — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

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

  • May 16, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:02734-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-6297 Upstream summary: It was discovered that dpkg-deb does not properly sanitize directory permissions when extracting a control member into a temporary directory, which […]

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FreeBSD 14 — atutor — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — atutor — security advisory — patch and remediation guide

  • May 15, 2025
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 15 May 2025 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: atutor — multiple vulnerabilities Upstream summary: ATutor reports: Security Fixes: Added a new layer of security over all php superglobals, fixed several XSS, CSRF, and SQL injection vulnerabilities. Table of […]

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NetBSD 10.0 — protobuf — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — protobuf — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • May 15, 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-2015-5237 CVE-2021-22570 CVE-2022-1941 Upstream summary: pkgsrc audit-packages flagged protobuf<3.4.0 for vulnerability class 'buffer-overflow'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2015-5237 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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