Common Problems

Common Problems 118916

Ubuntu 14.04 LTS apt-get Update Fails with Hash Sum Mismatch

🟡 Medium   ⏱ 5–30 min  Last verified: 10 April 2023 📖 ~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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AlmaLinux 9 — libfastjson — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — libfastjson — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:6431 Related CVEs: CVE-2020-12762 Upstream summary: The libfastjson library provides essential JavaScript Object Notation (JSON) handling functions. The library enables users to construct JSON objects in C, output them as JSON-formatted strings, […]

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Common Problems 111786

Windows Server 2022 – DHCP failover stays in partner-down state – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 10 April 2023 Affected versions: Windows Server 2022 📖 ~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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IBM AIX 7.3 — CVE-1999-0091 — buffer overflow — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-1999-0091 — buffer overflow — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 10 April 2023 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-1999-0091, IBM PSIRT advisory page CVE: CVE-1999-0091 NVD summary: Buffer overflow in AIX writesrv command allows local users to obtain root access. References: exchange.xforce.ibmcloud.com/vulnerabilities/CVE   exchange.xforce.ibmcloud.com/vulnerabilities/CVE Table of contents Symptom & Impact […]

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FreeBSD 12 — py39-tflite — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py39-tflite — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 April 2023 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-tflite — buffer overflow vulnerability Related CVEs: CVE-2021-37689 CVE-2022-41894 Upstream summary: Thibaut Goetghebuer-Planchon reports: The reference kernel of the CONV_3D_TRANSPOSE TensorFlow Lite operator wrongly increments the data_ptr when adding the […]

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Windows Server 2022 — KB5026427 — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5026427 — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5026427 • MSRC update-guide entry Related CVEs: CVE-2023-28283 CVE-2023-24903 CVE-2023-24943 CVE-2023-29325 CVE-2023-28251 CVE-2023-24900 CVE-2023-24940 CVE-2023-24942  +2 more Affected components: Windows Server 2022 Table of contents Symptom & Impact Environment & Reproduction Root […]

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FreeBSD 12 — py38-ipython — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py38-ipython — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 April 2023 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ipython — Execution with Unnecessary Privileges Related CVEs: CVE-2022-21699 Upstream summary: IPython project reports: IPython 8.0.1, 7.31.1 and 5.11 are security releases that change some default values in order to […]

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Alpine Linux edge — lighthouse — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — lighthouse — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 8.1.2-r0 📖 ~4 min read  •  Source: Alpine secdb entry — lighthouse 8.1.2-r0 Related CVEs: GHSA-vxx9-2994-q338 GHSA-gc42-3jg7-rxr2 GHSA-6xvm-j4wr-6v98 GHSA-4w32-2493-32g7 CVE-2022-0778 Upstream summary: Alpine community repository for vedge ships lighthouse 8.1.2-r0 which addresses GHSA-vxx9-2994-q338. Table of contents […]

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Oracle Linux 9 — python-wheel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — python-wheel — vulnerability — patch and remediation guide (ELSA-2023-6712)

🟡 Medium   ⏱ 10–30 min  Last verified: 10 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6712 Related CVEs: CVE-2022-40898 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 — open-vm-tools — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — open-vm-tools — vulnerability — patch and remediation guide (ELSA-2023-7265)

🟠 High   ⏱ 15–60 min  Last verified: 10 April 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-7265 Related CVEs: CVE-2023-34058 CVE-2023-34059 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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