Linux

CentOS Stream 10 — nodejs24 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 10

CentOS Stream 10 — nodejs24 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: CentOS Stream 10 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:7675 Related CVEs: CVE-2026-1525 CVE-2026-1526 CVE-2026-1527 CVE-2026-1528 CVE-2026-21637 CVE-2026-21710 CVE-2026-21711 CVE-2026-21712  +12 more Upstream summary: Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. […]

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Common Problems 114522

RHEL 9 DNF Update Fails with GPG Signature Errors

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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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Oracle Linux 9 — Kdump Might Fail on Some AMD Hardware — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Kdump Might Fail on Some AMD Hardware

🟠 High   ⏱ 5–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: Oracle Bug 31274238 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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SLES 15 — python3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — python3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory RHSA-2026:10711 (see also SUSE bugzilla) Related CVEs: CVE-2026-4786 CVE-2026-6100 CVE-2025-11468 CVE-2025-4138 CVE-2025-4330 CVE-2025-4435 CVE-2025-4517 CVE-2024-6232  +12 more Upstream summary: Mitgation of CVE-2026-4519 was incomplete. If the URL contained "%action" the mitigation could […]

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Common Problems 120085

Debian 12 UFW Rules Blocking Required Service Ports

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Debian 12 📖 ~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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Oracle Linux 9 — KVM Virtual Machines Panic When Started on Oracle Linux 9 Hosts — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — KVM Virtual Machines Panic When Started on Oracle Linux 9 Hosts

🟠 High   ⏱ 5–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: Oracle Bug 34224821 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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SLES 15 — perl-Text-CSV_XS — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — perl-Text-CSV_XS — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2026:1936-1 (see also SUSE bugzilla) Related CVEs: CVE-2026-7111 Upstream summary: Text::CSV_XS versions before 1.62 for Perl have a use-after-free when registered callbacks extend the Perl argument stack, which may enable type confusion […]

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Common Problems 120075

Debian 12 Sudo Access Broken by Policy Misconfiguration

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Debian 12 📖 ~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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CentOS Stream 9 — java-1.8.0-openjdk — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — java-1.8.0-openjdk — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:9683 Related CVEs: CVE-2026-22007 CVE-2026-22013 CVE-2026-22016 CVE-2026-22018 CVE-2026-22021 CVE-2026-23865 CVE-2026-34268 CVE-2025-64720  +12 more Upstream summary: The java-1.8.0-openjdk packages provide the OpenJDK 8 Java Runtime Environment and the OpenJDK 8 Java Software […]

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Common Problems 114512

RHEL 9 Service Starts Manually but Not on Boot

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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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