Common Problems

Oracle Linux 9 — Virtualization Issues — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Virtualization Issues (OL9-ISSUES-VIRTUALIZATION)

🟠 High   ⏱ 5–30 min  Last verified: 9 June 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: Oracle Bug RELOL-ol9-issues-virtualization 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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NetBSD 9.4 — ruby-netaddr — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — ruby-netaddr — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2019-17383 Upstream summary: pkgsrc audit-packages flagged ruby{22,24,25,26}-netaddr<2.0.4 for vulnerability class 'insecure-file-permissions'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2019-17383 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Ubuntu 18.04 — check-mk — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — check-mk — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 June 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5527-1 Related CVEs: CVE-2017-14955 CVE-2017-9781 CVE-2021-36563 CVE-2021-40906 CVE-2022-24565 Upstream summary: It was discovered that Checkmk incorrectly handled authentication. An attacker could possibly use this issue to cause a race condition […]

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Windows Server 2022 — KB5023697 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5023697 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5023697 • MSRC update-guide entry Related CVEs: CVE-2023-21708 CVE-2023-23404 CVE-2023-23411 CVE-2023-23415 CVE-2023-23416 CVE-2023-1017 CVE-2023-1018 CVE-2023-23385  +12 more Affected components: Windows Server 2022 Table of contents Symptom & Impact Environment & Reproduction Root […]

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NetBSD 9.4 — nodejs-8.[0-9]* — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — nodejs — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged nodejs for vulnerability class 'eol'. Reference: https://ftp.NetBSD.org/pub/NetBSD/packages/vulns/eol-packages Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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Common Problems 117507

Ubuntu 20.04 LTS – ext4 filesystem remounts read-only after I/O errors – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 9 June 2023 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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openSUSE Tumbleweed — python310-Flask-Security — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python310-Flask-Security — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:3093-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-21241 CVE-2023-49438 CVE-2021-23385 Upstream summary: The Python "Flask-Security-Too" package is used for adding security features to your Flask application. It is an is a independently […]

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Ubuntu 14.04 — jhead — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — jhead — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 9 June 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6113-1 Related CVEs: CVE-2018-6612 CVE-2021-28275 CVE-2021-28277 CVE-2021-3496 https://launchpad.net/bugs/2020068 CVE-2021-34055 CVE-2022-41751 CVE-2019-1010301  +7 more Upstream summary: It was discovered that Jhead did not properly handle certain crafted images while processing the […]

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NetBSD 9.4 — archivemail — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — archivemail — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2006-4245 Upstream summary: pkgsrc audit-packages flagged archivemail<0.7.0 for vulnerability class 'temporary-file-race'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2006-4245 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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SLES 12 — traceroute — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — traceroute — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 June 2023 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:3924-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-46316 Upstream summary: In buc Traceroute 2.0.12 through 2.1.2 before 2.1.3, the wrapper scripts do not properly parse command lines. Table of contents Symptom & […]

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CHAT