Common Problems

Ubuntu 16.04 — libsdl2 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libsdl2 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 6 July 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4143-1 Related CVEs: CVE-2017-2888 CVE-2019-7635 CVE-2019-7636 CVE-2019-7637 CVE-2019-7638 Upstream summary: It was discovered that SDL 2.0 mishandled crafted image files resulting in an integer overflow. If a user were tricked […]

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SLES 15 — python-azure-agent — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — python-azure-agent — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 6 July 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2019:0603-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-0804 Upstream summary: An information disclosure vulnerability exists in the way Azure WaLinuxAgent creates swap files on resource disks, aka 'Azure Linux Agent Information Disclosure […]

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Oracle Linux 8 — cpio — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — cpio — vulnerability — patch and remediation guide (ELSA-2021-1582)

🟡 Medium   ⏱ 10–30 min  Last verified: 6 July 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1582 Related CVEs: CVE-2019-14866 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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IBM AIX 7.2 — CVE-2020-4937 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2020-4937 — vulnerability — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 6 July 2020 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2020-4937, IBM Support Bulletin CVE: CVE-2020-4937 NVD summary: IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 6.0.3.2 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive […]

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Gentoo Linux — media-libs/freeimage — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — media-libs/freeimage — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202107-02 Related CVEs: CVE-2019-12211 CVE-2019-12213 Upstream summary: Multiple vulnerabilities have been discovered in FreeImage. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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Oracle Linux 8 — ELSA-2020-5624-1: thunderbird — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — ELSA-2020-5624-1: thunderbird — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 6 July 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5624-1 Related CVEs: CVE-2020-26974 CVE-2020-16042 CVE-2020-26971 CVE-2020-35113 CVE-2020-35111 CVE-2020-26973 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Common Problems 121091

MariaDB or MySQL Refuses to Start

🔴 Critical   ⏱ 5–30 min  Last verified: 5 July 2020 Affected versions: Debian 10 📖 ~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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Alpine Linux edge — faac — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — faac — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.30-r0 📖 ~4 min read  •  Source: Alpine secdb entry — faac 1.30-r0 Related CVEs: CVE-2018-19886 Upstream summary: Alpine community repository for vedge ships faac 1.30-r0 which addresses CVE-2018-19886. Table of contents Symptom & Impact Environment […]

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Common Problems 121043

Debian 10 – systemd service remains in activating state after reboot

🟠 High   ⏱ 5–30 min  Last verified: 5 July 2020 Affected versions: Debian 10 📖 ~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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Common Problems 119057

sudo Access Broken by Incorrect sudoers Edit on Ubuntu 14.04

🟡 Medium   ⏱ 5–30 min  Last verified: 5 July 2020 📖 ~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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