Linux

Ubuntu 20.04 — libraw — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libraw — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 5 October 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7485-1 Related CVEs: CVE-2025-43961 CVE-2025-43962 CVE-2025-43963 CVE-2025-43964 CVE-2020-22628 CVE-2021-32142 CVE-2023-1729 CVE-2020-15503  +4 more Upstream summary: It was discovered that LibRaw could be made to read out of bounds. An attacker […]

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Common Problems 119564

Debian 13 – time synchronization fails causing TLS and auth errors

🟠 High   ⏱ 5–30 min  Last verified: 5 October 2025 Affected versions: Debian 13 Debian 13 (Trixie) Debian 13.x 📖 ~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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Common Problems 114114

RHEL 10 – multipath Reports Duplicate WWID and Path Flapping – Storage Path Normalization

🟠 High   ⏱ 5–30 min  Last verified: 5 October 2025 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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openSUSE Tumbleweed — exim — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — exim — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:14935-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-26794 CVE-2023-42117 CVE-2023-42116 CVE-2010-4344 CVE-2014-2957 CVE-2018-6789 CVE-2019-10149 CVE-2019-13917  +12 more Upstream summary: Exim 4.98 before 4.98.1, when SQLite hints and ETRN serialization are used, allows […]

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How to Generate SSL Certificates with openssl on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Generate SSL Certificates with openssl on Debian 13

Introduction This guide explains how to Generate SSL Certificates with openssl on Debian 13 on Debian 13 Trixie. Debian Trixie uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 13 install with […]

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Oracle Linux 9 — libsoup — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — libsoup — vulnerability — patch and remediation guide (ELSA-2026-0422)

🟠 High   ⏱ 15–60 min  Last verified: 5 October 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-0422 Related CVEs: CVE-2025-14523 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 10 — perl-JSON-XS — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — perl-JSON-XS — vulnerability — patch and remediation guide (ELSA-2025-17119)

🟡 Medium   ⏱ 10–30 min  Last verified: 5 October 2025 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-17119 Related CVEs: CVE-2025-40928 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 119532

Debian 13 – journalctl Logs Consume Disk and Trigger Outages – Retention Fix

🟠 High   ⏱ 5–30 min  Last verified: 5 October 2025 Affected versions: Debian 13 (Trixie) 📖 ~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 8 — python3.12 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — python3.12 — vulnerability — patch and remediation guide (ELSA-2025-10031)

🟠 High   ⏱ 15–60 min  Last verified: 5 October 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-10031 Related CVEs: CVE-2025-4517 CVE-2025-4435 CVE-2024-12718 CVE-2025-4138 CVE-2025-4330 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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