Common Problems

Oracle Linux 8 — go-toolset:ol8 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — go-toolset:ol8 — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 5 April 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-3922 Related CVEs: CVE-2023-29402 CVE-2023-29404 CVE-2023-29405 CVE-2023-29403 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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AlmaLinux 9 — python-lxml — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — python-lxml — 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-2022:8226 Related CVEs: CVE-2022-2309 Upstream summary: lxml is an XML processing library providing access to libxml2 and libxslt libraries using the Python ElementTree API. Security Fix(es): * lxml: NULL Pointer Dereference in […]

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Oracle Linux 9 — jackson-annotations, jackson-core, jackson-databind, jackson-jaxrs-providers, and jackson-modules-base — vulnerability — patch and remedia… — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — jackson-annotations, jackson-core, jackson-databind, jackson-jaxrs-providers, and jackson-modules-base — vulnerability — p… (ELSA-2025-12280)

🟠 High   ⏱ 15–60 min  Last verified: 4 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-12280 Related CVEs: CVE-2025-52999 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 117568

Ubuntu 20.04 LTS – high CPU from kswapd0 due to memory pressure

🟠 High   ⏱ 5–30 min  Last verified: 4 April 2023 Affected versions: Ubuntu 20.04 LTS Ubuntu 20.04 Ubuntu 20.04.6 📖 ~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 […]

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IBM AIX 7.3 — CVE-2023-47707 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-2023-47707 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 4 April 2023 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-2023-47707, IBM Support Bulletin CVE: CVE-2023-47707 NVD summary: IBM Security Guardium Key Lifecycle Manager 4.3 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web […]

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FreeBSD 13 — gzip — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — gzip — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 4 April 2023 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: zgrep — arbitrary file write Related CVEs: CVE-2005-0988 CVE-2005-1228 CVE-2006-4334 CVE-2006-4335 CVE-2006-4336 CVE-2006-4337 CVE-2006-4338 CVE-2022-1271 Upstream summary: RedHat reports: An arbitrary file write vulnerability was found in GNU gzip's zgrep […]

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Windows Server 2019 — KB5022343 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5022343 — 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 KB5022343 • MSRC update-guide entry Related CVEs: CVE-2023-21535 CVE-2023-21546 CVE-2023-21543 CVE-2023-21548 CVE-2023-21555 CVE-2023-21556 CVE-2023-21561 CVE-2023-21679  +12 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]

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Debian 10 — xz-utils — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — xz-utils — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 April 2023 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-1271 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 111765

Windows Server 2022 DHCP Failover Partner State Stuck in Communication Interrupted – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 4 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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Ubuntu 20.04 — plantuml — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — plantuml — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 April 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7353-1 Related CVEs: CVE-2022-1231 Upstream summary: Tobias S. Fink discovered that PlantUML was susceptible to cross-site scripting attacks (XSS) in instances where SVG images were rendered. An attacker could possibly […]

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