July 2023 - Page 8 of 78

Common Problems 120106

Debian 12 Daemon Memory Leak Leading to OOM Kills

🔴 Critical   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Debian 12 📖 ~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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How to Configure Windows Server 2022 Software Load Balancer — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Windows Server 2022 Software Load Balancer

Introduction to Monitoring Windows Server 2022 with Prometheus Prometheus is a pull-based metrics system that scrapes HTTP endpoints at configured intervals and stores time-series data for querying and alerting. The windows_exporter (formerly wmi_exporter) is the standard Prometheus exporter for Windows Server, exposing hundreds of metrics covering CPU, memory, disk, network, IIS, services, and more. This […]

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NetBSD 9.4 — py-mechanize — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — py-mechanize — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2021-32837 Upstream summary: pkgsrc audit-packages flagged py{27,36,37,38,39,310,311}-mechanize<0.4.6 for vulnerability class 'denial-of-service'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-32837 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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NetBSD 9.4 — gaim-encryption — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — gaim-encryption — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2005-4693 Upstream summary: pkgsrc audit-packages flagged gaim-encryption<2.39 for vulnerability class 'denial-of-service'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4693 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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NetBSD 9.4 — wolfssl — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — wolfssl — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟡 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-2020-11713 CVE-2020-11735 CVE-2020-24585 CVE-2020-36177 CVE-2021-3336 CVE-2021-24116 CVE-2021-37155 CVE-2021-38597  +12 more Upstream summary: pkgsrc audit-packages flagged wolfssl<4.4.0 for vulnerability class 'side-channel'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-11713 Table of contents Symptom & Impact Environment […]

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Amazon Linux 2023 — jackson-databind — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — jackson-databind — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2025-798 Related CVEs: CVE-2022-42004 CVE-2021-46877 Upstream summary: In FasterXML jackson-databind before 2.13.4, resource exhaustion can occur because of a lack of a check in BeanDeserializer._deserializeFromArray to prevent use of deeply […]

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Common Problems 124617

Oracle Linux 9 – Common Problem 016 – Diagnosis and Fix

🔴 Critical   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Oracle Linux 9 📖 ~3 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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AlmaLinux 8 — vorbis-tools — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — vorbis-tools — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2024:3095 Related CVEs: CVE-2023-43361 Upstream summary: The vorbis-tools packages provide an encoder, a decoder, a playback tool, and a comment editor for Ogg Vorbis. Ogg Vorbis is a fully open, non-proprietary, patent- […]

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Windows Server 2022 — KB5028171 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5028171 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5028171 • MSRC update-guide entry Related CVEs: CVE-2023-35315 CVE-2023-35352 CVE-2023-35365 CVE-2023-35366 CVE-2023-35367 CVE-2023-32057 CVE-2023-35297 CVE-2023-21756  +12 more Affected components: Windows Server 2022 (Server Core installation) Windows Server 2022 Table of contents Symptom […]

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How to Set Up a Firewall with firewalld on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up a Firewall with firewalld on Oracle Linux 9

Introduction This tutorial demonstrates how to Set Up a Firewall with firewalld 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 […]

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