Linux

Oracle Linux 9 — libxml2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — libxml2 — vulnerability — patch and remediation guide (ELSA-2023-4349)

🟡 Medium   ⏱ 10–30 min  Last verified: 8 July 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-4349 Related CVEs: CVE-2023-29469 CVE-2023-28484 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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Alpine Linux 3.18 — dotnet7-runtime — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — dotnet7-runtime — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 7.0.9-r0 📖 ~4 min read  •  Source: Alpine secdb entry — dotnet7-runtime 7.0.9-r0 Related CVEs: CVE-2023-33127 CVE-2023-33170 CVE-2023-24895 CVE-2023-24897 CVE-2023-24936 CVE-2023-29331 CVE-2023-29337 CVE-2023-32032  +12 more Upstream summary: Alpine community repository for vv3.18 ships dotnet7-runtime 7.0.9-r0 which […]

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Alpine Linux 3.18 — apr — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — apr — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 1.7.5-r0 📖 ~4 min read  •  Source: Alpine secdb entry — apr 1.7.5-r0 Related CVEs: CVE-2023-49582 CVE-2022-24963 CVE-2022-25147 CVE-2022-28331 CVE-2021-35940 Upstream summary: Alpine main repository for vv3.18 ships apr 1.7.5-r0 which addresses CVE-2023-49582. Table of contents […]

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Oracle Linux 9 — skopeo — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — skopeo — security and stability fixes — required update (ELSA-2024-2549)

🟡 Medium   ⏱ 10–30 min  Last verified: 7 July 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-2549 Related CVEs: CVE-2024-28180 CVE-2024-24786 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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AlmaLinux 8 — protobuf-c — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — protobuf-c — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:6944 Related CVEs: CVE-2022-48468 Upstream summary: The protobuf-c packages provide C bindings for Google's Protocol Buffers. Security Fix(es): * protobuf-c: unsigned integer overflow in parse_required_member (CVE-2022-48468) For more details about the security […]

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Common Problems 120115

Debian 12 MariaDB Fails Startup Due to InnoDB Issues

🔴 Critical   ⏱ 5–30 min  Last verified: 7 July 2023 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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Debian 12 — libmatroska — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libmatroska — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 July 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-8792 Upstream summary: The KaxInternalBlock::ReadData function in libMatroska before 1.4.4 allows context-dependent attackers to obtain sensitive information from process heap memory via crafted EBML lacing, which triggers an […]

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Common Problems 117589

Ubuntu 20.04 USB device not recognized

🟡 Medium   ⏱ 5–30 min  Last verified: 7 July 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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How to Set Up a Private Docker Registry on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up a Private Docker Registry on Debian 12

Introduction Deploying set up a private docker registry on debian 12 on a Debian 12 Bookworm machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites […]

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