Common Problems

Common Problems 117936

Ubuntu 18.04 LTS – netplan apply fails due to YAML syntax error – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 18.04 LTS 📖 ~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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SLES 15 — samba — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — samba — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2023:0019-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-44640 CVE-2009-1886 CVE-2020-17049 CVE-2010-3069 CVE-2012-0870 CVE-2012-1182 CVE-2013-4408 CVE-2015-8467  +12 more Upstream summary: Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an […]

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Common Problems 118431

Ubuntu 16.04 LTS – unmet dependencies prevent apt install and upgrade – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 16.04 LTS 📖 ~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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SLES 12 — libwebp5 — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libwebp5 — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:1830-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-25009 CVE-2018-25010 CVE-2018-25011 CVE-2018-25012 CVE-2018-25013 CVE-2020-36331 CVE-2023-4863 CVE-2023-1999  +3 more Upstream summary: A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in […]

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Common Problems 118961

Ubuntu 14.04 LTS network interface missing after reboot

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: 14.04 LTS 📖 ~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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CentOS Stream 10 — haproxy — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 10

CentOS Stream 10 — haproxy — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: CentOS Stream 10 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2025:21691 Related CVEs: CVE-2025-11230 Upstream summary: The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications. Security Fix(es): * haproxy: denial of service vulnerability in HAProxy […]

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Debian 13 — libsoup3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libsoup3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2024-52530 CVE-2024-52531 CVE-2024-52532 CVE-2025-11021 CVE-2025-12105 CVE-2025-14523 CVE-2025-2784 CVE-2025-32049  +12 more Upstream summary: GNOME libsoup before 3.6.0 allows HTTP request smuggling in some configurations because '\0' characters at the […]

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CentOS Stream 9 — libpng15 — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — libpng15 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:3031 Related CVEs: CVE-2026-25646 Upstream summary: The libpng15 package provides libpng 1.5, an older version of the libpng. library for manipulating PNG (Portable Network Graphics) image format files. This version should […]

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Common Problems 119996

Debian 12 systemd Service Hits Start-Limit-Hit Loop

🟠 High   ⏱ 5–30 min  Last verified: 19 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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IBM AIX 7.3 — CVE-2002-1468 — buffer overflow — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-2002-1468 — buffer overflow — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 25 May 2026 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-2002-1468, IBM PSIRT advisory page CVE: CVE-2002-1468 NVD summary: Buffer overflow in errpt in AIX 4.3.3 allows local users to execute arbitrary code as root. References: archives.neohapsis.com/archives/aix/2002-q3/0007   www.securityfocus.com/bid/5885   archives.neohapsis.com/archives/aix/2002-q3/0007 Table […]

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