chris

Common Problems 114022

kdump service inactive after kernel update

🟠 High   ⏱ 5–30 min  Last verified: 5 December 2025 Affected versions: RHEL 10.0 📖 ~1 min read Table of contents Problem Summary Symptoms Diagnostics Root Cause Primary Fix Verification Prevention Rollback Automation Command Reference Escalation Related Notes Problem Summary Crash dump capture is disabled unexpectedly after update. Symptoms systemctl status kdump reports failed […]

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FreeBSD 12 — screen — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — screen — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 4 December 2025 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: screen — multiple vulnerabilities Related CVEs: CVE-2006-4573 CVE-2015-6806 CVE-2025-23395 CVE-2025-46802 CVE-2025-46803 CVE-2025-46804 CVE-2025-46805 Upstream summary: The screen project reports: Multiple security issues in screen. Table of contents Symptom & Impact […]

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Common Problems 114417

systemctl Shows Service Failed Immediately After Start

🟡 Medium   ⏱ 5–30 min  Last verified: 4 December 2025 📖 ~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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NetBSD 10.0 — nnn — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — nnn — vulnerability — 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-2025-13566 Upstream summary: pkgsrc audit-packages flagged nnn-[0-9]* for vulnerability class 'double-free'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-13566 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Debian 13 — kconfig — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — kconfig — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 December 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-14744 Upstream summary: In KDE Frameworks KConfig before 5.61.0, malicious desktop files and configuration files lead to code execution with minimal user interaction. This relates to libKF5ConfigCore.so, and the […]

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Debian 13 — libmwaw — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libmwaw — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 December 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-9433 Upstream summary: Document Liberation Project libmwaw before 2017-04-08 has an out-of-bounds write caused by a heap-based buffer overflow related to the MsWrd1Parser::readFootnoteCorrespondance function in lib/MsWrd1Parser.cxx. Table of contents […]

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AlmaLinux 10 — httpd — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 10

AlmaLinux 10 — httpd — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 10 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2025:23932 Related CVEs: CVE-2025-58098 CVE-2025-65082 CVE-2025-66200 CVE-2024-47252 CVE-2025-23048 CVE-2025-49812 Upstream summary: The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Security Fix(es): * httpd: Apache HTTP […]

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Debian 11 — tinyproxy — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — tinyproxy — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 4 December 2025 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2002-0847 CVE-2011-1499 CVE-2011-1843 CVE-2012-3505 CVE-2017-11747 CVE-2022-40468 CVE-2023-49606 CVE-2025-63938  +2 more Upstream summary: tinyproxy HTTP proxy 1.5.0, 1.4.3, and earlier allows remote attackers to execute arbitrary code via memory […]

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Debian 13 — exaile — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — exaile — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 December 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-7220 Upstream summary: Unspecified vulnerability in Prototype JavaScript framework (prototypejs) before 1.6.0.2 allows attackers to make "cross-site ajax requests" via unknown vectors. Table of contents Symptom & Impact […]

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