Linux

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-2022-9827)

🟠 High   ⏱ 15–60 min  Last verified: 12 May 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9827 Related CVEs: CVE-2022-2586 CVE-2022-21385 CVE-2022-2588 CVE-2022-34918 CVE-2022-2585 CVE-2022-21546 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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

Oracle Linux 8 — ncurses — vulnerability — patch and remediation guide (ELSA-2023-5249)

🟡 Medium   ⏱ 10–30 min  Last verified: 12 May 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5249 Related CVEs: CVE-2023-29491 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 — compat-openssl10 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — compat-openssl10 — vulnerability — patch and remediation guide (ELSA-2025-7895)

🟠 High   ⏱ 15–60 min  Last verified: 12 May 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-7895 Related CVEs: CVE-2023-0286 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 9 — vim — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — vim — vulnerability — patch and remediation guide (ELSA-2023-0958)

🟡 Medium   ⏱ 10–30 min  Last verified: 12 May 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0958 Related CVEs: CVE-2022-47024 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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Alpine Linux 3.18 — libxpm — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — libxpm — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 3.5.15-r0 📖 ~4 min read  •  Source: Alpine secdb entry — libxpm 3.5.15-r0 Related CVEs: CVE-2022-46285 CVE-2022-44617 CVE-2022-4883 Upstream summary: Alpine main repository for vv3.18 ships libxpm 3.5.15-r0 which addresses CVE-2022-46285. Table of contents Symptom & […]

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Oracle Linux 9 — .NET 6.0 security and bugfix update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — .NET 6.0 security and bugfix update (ELSA-2022-6913)

🟡 Medium   ⏱ 10–30 min  Last verified: 11 May 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6913 Related CVEs: CVE-2022-41032 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 117898

Ubuntu 18.04 LTS – apt lock prevents updates during maintenance windows – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 11 May 2023 Affected versions: Ubuntu 18.04 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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Ubuntu 22.04 — advancecomp — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — advancecomp — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 11 May 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5838-1 Related CVEs: CVE-2022-35014 CVE-2022-35015 CVE-2022-35016 CVE-2022-35017 CVE-2022-35018 CVE-2022-35019 CVE-2022-35020 Upstream summary: It was discovered that AdvanceCOMP did not properly manage memory while performing read operations on MNG file. If […]

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Amazon Linux 2 — kernel-livepatch-5.10.186-179.751 — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-5.10.186-179.751 — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2023-155 Related CVEs: CVE-2023-3777 CVE-2023-4004 CVE-2023-4147 CVE-2023-4206 CVE-2023-4207 CVE-2023-4208 CVE-2023-4622 CVE-2023-4623  +1 more Upstream summary: A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve […]

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Common Problems 114901

RHEL 8 systemctl Dependency Job Failed During Service Start

🟡 Medium   ⏱ 5–30 min  Last verified: 11 May 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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