Operations

Windows Server 2019 — KB5029259 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5029259 — 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 KB5029259 • MSRC update-guide entry Related CVEs: CVE-2023-36910 CVE-2023-36911 CVE-2023-35385 CVE-2023-35359 CVE-2023-36873 CVE-2023-36882 CVE-2023-36889 CVE-2023-36899  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft .NET Framework 3.5 AND 4.8 on […]

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openSUSE Tumbleweed — libredwg0 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libredwg0 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • June 10, 2023
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2022-35164 CVE-2021-28237 CVE-2019-9770 CVE-2023-26157 CVE-2022-33025 CVE-2023-36271 CVE-2023-36273 CVE-2019-9774  +12 more Upstream summary: LibreDWG v0.12.4.4608 & commit f2dea29 was discovered to contain a heap use-after-free via […]

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NetBSD 9.4 — postfix — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — postfix — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • June 10, 2023
  • 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-2008-2936 CVE-2017-10140 CVE-2008-2937 CVE-2023-51764 CVE-2011-1720 Upstream summary: pkgsrc audit-packages flagged postfix<2.5.4 for vulnerability class 'privilege-escalation'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2936 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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How to Set Up Docker on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up Docker on Windows Server 2022

Why IIS Security Hardening Matters A default IIS installation on Windows Server 2022 is functional but not fully hardened. Out of the box, IIS reveals version information in response headers, serves directory listings for unconfigured virtual directories, may support legacy TLS versions, and lacks the HTTP security headers that modern browsers rely on to prevent […]

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NetBSD 9.4 — halibut — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — halibut — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • June 10, 2023
  • 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-2021-42612 CVE-2021-42614 CVE-2021-42613 Upstream summary: pkgsrc audit-packages flagged halibut<1.3 for vulnerability class 'use-after-free'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-42612 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Common Problems 114543

RHEL 9 fapolicyd blocks newly deployed binaries

  • June 9, 2023
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 9 June 2023 📖 ~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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AlmaLinux 9 — virt-v2v — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — virt-v2v — vulnerability — patch and remediation guide

  • June 9, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2022:7968 Related CVEs: CVE-2022-2211 Upstream summary: The virt-v2v package provides a tool for converting virtual machines to use the KVM (Kernel-based Virtual Machine) hypervisor or AlmaLinux Enterprise Virtualization. The tool modifies both […]

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How to Configure FIPS 140-2 Mode on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure FIPS 140-2 Mode on Oracle Linux 9

Introduction This tutorial demonstrates how to Configure FIPS 140-2 Mode on Oracle Linux 9 on Oracle Linux 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 9 system with the […]

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NetBSD 9.4 — ruby-redcarpet — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — ruby-redcarpet — vulnerability — patch and remediation guide

  • June 9, 2023
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2020-26298 Upstream summary: pkgsrc audit-packages flagged ruby{193,200,215}-redcarpet<3.2.3 for vulnerability class 'cross-site-scripting'. Reference: http://openwall.com/lists/oss-security/2015/04/07/11 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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