Common Problems

Common Problems 118531

Ubuntu 16.04 LTS – cloud-init stalls and delays first boot provisioning – Fix & Prevention

🟡 Medium   ⏱ 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 — gdm — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — gdm — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-RU-2025:20479-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-6018 CVE-2020-16125 CVE-2011-1709 CVE-2018-14424 Upstream summary: A Local Privilege Escalation (LPE) vulnerability has been discovered in pam-config within Linux Pluggable Authentication Modules (PAM). This flaw […]

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Common Problems 119062

Ubuntu 14.04 LTS UFW rule change accidentally blocks SSH

🔴 Critical   ⏱ 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 — glib2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 10

CentOS Stream 10 — glib2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: CentOS Stream 10 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:15969 Related CVEs: CVE-2025-14087 CVE-2025-14512 CVE-2025-13601 Upstream summary: GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, […]

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

Debian 13 — pillow — 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-2014-1932 CVE-2014-1933 CVE-2014-3007 CVE-2014-3589 CVE-2014-3598 CVE-2014-9601 CVE-2016-0740 CVE-2016-0775  +12 more Upstream summary: The (1) load_djpeg function in JpegImagePlugin.py, (2) Ghostscript function in EpsImagePlugin.py, (3) load function in IptcImagePlugin.py, […]

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CentOS Stream 9 — php-pecl-rrd — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — php-pecl-rrd — multiple vulnerabilities (20 CVEs) — 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-2026:1409 Related CVEs: CVE-2025-1220 CVE-2025-14177 CVE-2025-14178 CVE-2025-14180 CVE-2025-1735 CVE-2025-6491 CVE-2024-11235 CVE-2025-1217  +12 more Upstream summary: PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server. Security Fix(es): * […]

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Common Problems 120096

Debian 12 High I/O Wait Caused by Swap Thrashing

🟠 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-2002-0743 — buffer overflow — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-2002-0743 — 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-2002-0743, IBM PSIRT advisory page CVE: CVE-2002-0743 NVD summary: mail and mailx in AIX 4.3.3 core dump when called with a very long argument, an indication of a buffer overflow. References: archives.neohapsis.com/archives/aix/2002-q2/0005 […]

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Debian 11 — glibc — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — glibc — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-1999-0199 CVE-2002-0391 CVE-2002-0651 CVE-2002-0684 CVE-2002-1146 CVE-2003-0028 CVE-2003-0689 CVE-2004-0968  +12 more Upstream summary: manual/search.texi in the GNU C Library (aka glibc) before 2.2 lacks a statement about the unspecified […]

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