Linux

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

Oracle Linux 8 — libseccomp security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2019-3624)

🟡 Medium   ⏱ 10–30 min  Last verified: 10 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3624 Related CVEs: CVE-2019-9893 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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AlmaLinux 8 — libxcrypt — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libxcrypt — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4371 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 117571

Ubuntu 20.04 LTS – Docker daemon fails after kernel update with cgroup issues – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 10 June 2021 Affected versions: Ubuntu 20.04 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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AlmaLinux 8 — libsemanage — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libsemanage — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:2119 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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Gentoo Linux — app-arch/cpio — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — app-arch/cpio — multiple vulnerabilities (3 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-202407-07 Related CVEs: CVE-2016-2037 CVE-2019-14866 CVE-2021-38185 Upstream summary: Multiple vulnerabilities have been discovered in cpio. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & […]

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Arch Linux — lib32-openssl — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — lib32-openssl — multiple vulnerabilities (20 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-202004-19 Related CVEs: CVE-2020-1967 CVE-2016-6306 CVE-2016-6304 CVE-2016-6303 CVE-2016-6302 CVE-2016-2183 CVE-2016-2182 CVE-2016-2181  +12 more Upstream summary: Type: denial of service. Status: Fixed. Affected: 1.1.1.f-1. Fixed in: 1.1.1.g-1. Group: AVG-1142. Table of […]

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Common Problems 115033

RHEL 8 sudo command delay caused by SSSD offline lookups

🟡 Medium   ⏱ 5–30 min  Last verified: 10 June 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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Arch Linux — kdeconnect — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — kdeconnect — vulnerability — 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-202010-7 Related CVEs: CVE-2020-26164 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 20.08.1-1. Fixed in: 20.08.2-1. Group: AVG-1241. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Oracle Linux 8 — Error: " mcelog service does not support this processor " — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Error: ” mcelog service does not support this processor “

🟠 High   ⏱ 5–30 min  Last verified: 9 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 29501190 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 […]

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