Operations

SLES 15 — libpixman — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libpixman — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 31 January 2023 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:4148-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-44638 Upstream summary: In libpixman in Pixman before 0.42.2, there is an out-of-bounds write (aka heap-based buffer overflow) in rasterize_edges_8 due to an integer overflow […]

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How to Configure Windows Server 2022 for High Availability — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Windows Server 2022 for High Availability

What Is PowerShell Desired State Configuration? PowerShell Desired State Configuration (DSC) is a declarative management platform built into Windows PowerShell and PowerShell 7. Instead of writing imperative scripts that execute a sequence of commands, DSC lets you describe the desired end state of a system — which Windows features should be installed, which services should […]

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Common Problems 116914

Ubuntu 22.04 LTS DNS Resolution Fails with systemd-resolved

🟡 Medium   ⏱ 5–30 min  Last verified: 30 January 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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IBM AIX 7.3 — CVE-1999-0128 — denial of service — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-1999-0128 — denial of service — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 30 January 2023 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-1999-0128, IBM PSIRT advisory page CVE: CVE-1999-0128 NVD summary: Oversized ICMP ping packets can result in a denial of service, aka Ping o' Death. References: exchange.xforce.ibmcloud.com/vulnerabilities/CVE   exchange.xforce.ibmcloud.com/vulnerabilities/CVE Table of contents Symptom […]

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Common Problems 114630

kdump Fails To Capture Crash Dumps

🟡 Medium   ⏱ 5–30 min  Last verified: 30 January 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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Debian 11 — rake — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — rake — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-8130 Upstream summary: There is an OS command injection vulnerability in Ruby Rake < 12.3.3 in Rake::FileList when supplying a filename that begins with the pipe character `|`. […]

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How to Configure BGP Routing with FRRouting on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure BGP Routing with FRRouting on Oracle Linux 9

Introduction How to Configure BGP Routing with FRRouting on Oracle Linux 9 on Oracle Linux 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting […]

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Common Problems 114398

DNF Metadata Download Errors After Adding Extra Repositories

🟡 Medium   ⏱ 5–30 min  Last verified: 30 January 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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FreeBSD 12 — php80-kanboard — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php80-kanboard — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 January 2023 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Kanboard — Multiple vulnerabilities Related CVEs: CVE-2023-32685 CVE-2023-33956 CVE-2023-33968 CVE-2023-33969 CVE-2023-33970 Upstream summary: Kanboard is project management software that focuses on the Kanban methodology. The last update includes 4 vulnerabilities: […]

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