Operations

Windows Server 2022 — KB5027256 — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5027256 — multiple vulnerabilities (18 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5027256 • MSRC update-guide entry Related CVEs: CVE-2023-29363 CVE-2023-32014 CVE-2023-32015 CVE-2023-29346 CVE-2023-29351 CVE-2023-29358 CVE-2023-29359 CVE-2023-29362  +10 more Affected components: Windows Server 2022 Table of contents Symptom & Impact Environment & Reproduction Root […]

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Debian 11 — jtidy — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — jtidy — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-34623 Upstream summary: An issue was discovered jtidy thru r938 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic […]

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Common Problems 111837

Windows Server 2022 — Cluster validation fails on network configuration checks — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 January 2023 Affected versions: Windows Server 2022 📖 ~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 […]

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Ubuntu 18.04 — snakeyaml — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — snakeyaml — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 January 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7368-1 Related CVEs: CVE-2017-18640 CVE-2022-25857 CVE-2022-38749 CVE-2022-38750 CVE-2022-38751 Upstream summary: It was discovered that SnakeYAML incorrectly handled recursive entity references. An attacker could possibly use this issue to cause SnakeYAML […]

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Alpine Linux edge — graphicsmagick — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — graphicsmagick — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.3.38-r0 📖 ~4 min read  •  Source: Alpine secdb entry — graphicsmagick 1.3.38-r0 Related CVEs: CVE-2022-1270 CVE-2020-12672 CVE-2020-10938 CVE-2018-18544 CVE-2018-20189 CVE-2019-7397 CVE-2019-11473 CVE-2019-11474  +12 more Upstream summary: Alpine community repository for vedge ships graphicsmagick 1.3.38-r0 which […]

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Ubuntu 22.04 — zlib — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — zlib — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 January 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5570-2 Related CVEs: CVE-2022-37434 Upstream summary: USN-5570-1 fixed a vulnerability in zlib. This update provides the corresponding update for Ubuntu 22.04 LTS and Ubuntu 20.04 LTS. Original advisory details: Evgeny […]

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How to Use netboot for Diskless Clients on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use netboot for Diskless Clients on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use netboot for diskless clients on ibm aix 7.1 […]

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How to Configure Remote Access VPN with SSTP on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Remote Access VPN with SSTP on Windows Server 2016

How to Configure Remote Access VPN with SSTP on Windows Server 2016 Secure Socket Tunneling Protocol (SSTP) is a VPN protocol that encapsulates Point-to-Point Protocol (PPP) traffic within an SSL/TLS channel over TCP port 443. Because SSTP uses HTTPS, it traverses most firewalls and proxy servers without requiring special firewall rules beyond standard HTTPS access. […]

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Ubuntu 20.04 — gsasl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — gsasl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 January 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6169-1 Related CVEs: CVE-2022-2469 Upstream summary: It was discovered that GNU SASL's GSSAPI server could make an out-of-bounds reads if given specially crafted GSS-API authentication data. A remote attacker could […]

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CentOS Stream 9 — python3.11-pip — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — python3.11-pip — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 January 2023 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2023:6324 Related CVEs: CVE-2007-4559 Upstream summary: pip is a package management system used to install and manage software packages written in Python. Many packages can be found in the Python Package […]

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