Common Problems

Gentoo Linux — net-mail/isync — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-mail/isync — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202208-15 Related CVEs: CVE-2021-3578 CVE-2021-3657 CVE-2021-20247 CVE-2021-44143 Upstream summary: Multiple vulnerabilities have been discovered in isync. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment […]

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Debian 9 — python-pysaml2 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — python-pysaml2 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 July 2021 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-5390 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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Ubuntu 20.04 — plib — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — plib — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 July 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6353-1 Related CVEs: CVE-2021-38714 Upstream summary: Wooseok Kang discovered that PLIB did not properly manage memory under certain circumstances. If a user were tricked into opening a specially crafted TGA […]

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Arch Linux — python — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — python — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201906-17 Related CVEs: CVE-2019-9636 CVE-2021-3177 CVE-2021-23336 Upstream summary: Type: information disclosure. Status: Fixed. Affected: 3.7.2-1. Fixed in: 3.7.3-1. Group: AVG-977. Table of contents Symptom & Impact Environment & Reproduction Root […]

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SLES 12 — libSDL — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libSDL — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 12 July 2021 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:0104-2 (see also SUSE bugzilla) Related CVEs: CVE-2020-14409 CVE-2020-14410 CVE-2021-33657 CVE-2019-13616 CVE-2019-7572 CVE-2019-7573 CVE-2019-7574 CVE-2019-7575  +7 more Upstream summary: SDL (Simple DirectMedia Layer) through 2.0.12 has an Integer Overflow (and resultant SDL_memcpy […]

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Arch Linux — tomcat9 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — tomcat9 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202006-7 Related CVEs: CVE-2020-9484 CVE-2020-17527 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 9.0.31-1. Fixed in: 9.0.35-1. Group: AVG-1171. Table of contents Symptom & Impact Environment & Reproduction Root […]

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Oracle Linux 8 — ruby:3.3 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — ruby:3.3 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2024-3670)

🟡 Medium   ⏱ 10–30 min  Last verified: 11 July 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-3670 Related CVEs: CVE-2024-27281 CVE-2024-27280 CVE-2024-27282 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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AlmaLinux 8 — infiniband-diags — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — infiniband-diags — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2019:3585 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 119067

NTP Time Drift Causes Authentication and TLS Failures on Ubuntu 14.04

🟡 Medium   ⏱ 5–30 min  Last verified: 11 July 2021 📖 ~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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