Common Problems

Ubuntu 20.04 — tang — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — tang — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 January 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6489-1 Related CVEs: CVE-2023-1672 Upstream summary: Brian McDermott discovered that Tang incorrectly handled permissions when creating/rotating keys. A local attacker could possibly use this issue to read the keys. Table […]

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Windows Server 2019 — KB5022838 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5022838 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5022838 • MSRC update-guide entry Related CVEs: CVE-2023-21808 CVE-2023-21689 CVE-2023-21690 CVE-2023-21692 CVE-2023-21684 CVE-2023-21701 CVE-2023-21797 CVE-2023-21798  +12 more Affected components: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 Windows Server 2019 […]

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SLES 15 — fwupd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — fwupd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 January 2023 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:1681-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-10759 CVE-2022-3287 Upstream summary: A PGP signature bypass flaw was found in fwupd (all versions), which could lead to the installation of unsigned firmware. As […]

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

Oracle Linux 8 — istio — vulnerability — patch and remediation guide (ELSA-2023-12780)

🟠 High   ⏱ 15–60 min  Last verified: 24 January 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12780 Related CVEs: CVE-2023-35942 CVE-2023-35941 CVE-2023-35944 CVE-2023-35943 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Oracle Linux 9 — open-vm-tools — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — open-vm-tools — vulnerability — patch and remediation guide (ELSA-2023-5313)

🟠 High   ⏱ 15–60 min  Last verified: 24 January 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5313 Related CVEs: CVE-2023-20900 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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Windows Server 2019 — KB5033376 — security update — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5033376 — security update — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5033376 • MSRC update-guide entry Related CVEs: CVE-2023-35628 Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Windows Server 2016 — KB5022735 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5022735 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5022735 • MSRC update-guide entry Related CVEs: CVE-2023-21808 CVE-2023-21722 Affected components: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2016 Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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IBM AIX 7.3 — CVE-2006-5005 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-2006-5005 — vulnerability — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 24 January 2023 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-2006-5005, IBM Support Bulletin CVE: CVE-2006-5005 NVD summary: Unspecified vulnerability in bos.net.tcp.client in IBM AIX 5.2.0 and 5.3.0 allows local users to execute arbitrary commands via unspecified vectors involving /etc/slip.login. References: ftp://aix.software.ibm.com/aix/efixes/security/R […]

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