Common Problems

Common Problems 115544

journalctl Disk Usage Grows Unexpectedly

🟡 Medium   ⏱ 5–30 min  Last verified: 28 August 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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Common Problems 113116

Windows Server 2016 PerfMon Shows High Split IO per Sec on Misaligned Virtual Disks – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 28 August 2020 Affected versions: Windows Server 2016 📖 ~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 112498

Windows Server 2019 — Dual Scan Configuration Pulls Unapproved Internet Updates — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 28 August 2020 Affected versions: Windows Server 2019 📖 ~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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FreeBSD 12 — nexus2-oss — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — nexus2-oss — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 August 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: nexus2-oss — Apache ActiveMQ JMX vulnerability Related CVEs: CVE-2019-15893 CVE-2019-16530 CVE-2019-5475 CVE-2020-13920 CVE-2020-15012 Upstream summary: Sonatype reports: CVE-2020-13920: Apache ActiveMQ JMX is vulnerable to a MITM attack Table of contents […]

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Oracle Linux 8 — resource-agents — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — resource-agents — vulnerability — patch and remediation guide (ELSA-2020-5947)

🟠 High   ⏱ 15–60 min  Last verified: 28 August 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5947 Related CVEs: CVE-2020-11078 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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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2020-5792)

🟠 High   ⏱ 15–60 min  Last verified: 28 August 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5792 Related CVEs: CVE-2020-15780 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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Common Problems 114983

RHEL 8 kernel update boots without required storage driver

🟡 Medium   ⏱ 5–30 min  Last verified: 27 August 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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Common Problems 112496

Windows Server 2019 — Windows Update service wuauserv hangs at scanning — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 27 August 2020 Affected versions: Windows Server 2019 📖 ~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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Ubuntu 18.04 — libcroco — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libcroco — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 August 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6958-1 Related CVEs: CVE-2017-7960 CVE-2017-8834 CVE-2017-8871 CVE-2020-12825 Upstream summary: It was discovered that Libcroco was incorrectly accessing data structures when reading bytes from memory, which could cause a heap buffer […]

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Debian 9 — bluez — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — bluez — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 August 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-1000250 CVE-2020-0556 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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