chris

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

🟡 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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How to Set Up Windows Server Backup and Recovery on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Set Up Windows Server Backup and Recovery on Windows Server 2025

How to Set Up Windows Server Backup and Recovery on Windows Server 2025 A robust backup and recovery strategy is non-negotiable for any production Windows Server 2025 environment. Windows Server Backup is the built-in backup solution included with Windows Server 2025 at no extra cost, supporting full server backups, volume-level backups, system state backups, and […]

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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

🟢 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

🟡 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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How to Use Bacula for Enterprise Backup on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Use Bacula for Enterprise Backup on RHEL 9

Bacula is a mature, enterprise-grade open-source backup solution that manages backup, recovery, and data verification across heterogeneous networks. It uses a three-tier architecture — Director, Storage Daemon, and File Daemon — allowing centralised policy management with distributed storage targets. On RHEL 9, Bacula packages are available from the EPEL repository and integrate naturally with systemd. […]

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FreeBSD 14 — py39-OWSLib — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — py39-OWSLib — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 May 2025 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py39-OWSLib — arbitrary file read vulnerability Related CVEs: CVE-2023-27476 Upstream summary: Jorge Rosillo reports: OWSLib's XML parser (which supports both `lxml` and `xml.etree`) does not disable entity resolution for `lxml`, […]

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NetBSD 10.0 — xmill — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — xmill — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2021-21825 CVE-2021-21810 CVE-2021-21828 CVE-2021-21827 CVE-2021-21826 CVE-2021-21811 Upstream summary: pkgsrc audit-packages flagged xmill-[0-9]* for vulnerability class 'remote-code-execution'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-21825 Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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NetBSD 10.0 — cyrus-imapd-2.2.[7-8] — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — cyrus-imapd — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged cyrus-imapd{,nb*} for vulnerability class 'remote-code-execution'. Reference: http://security.e-matters.de/advisories/152004.txt Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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