Linux

Common Problems 116979

Ubuntu 22.04 LTS – systemd service fails at boot with unit start-limit-hit

🟠 High   ⏱ 5–30 min  Last verified: 8 August 2022 Affected versions: Ubuntu 22.04 LTS Ubuntu 22.04 Ubuntu 22.04.4 📖 ~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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How to Install GitLab Runner on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install GitLab Runner on Debian 11

Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up install gitlab runner on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully and the […]

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Oracle Linux 8 — Virtual Function MAC Address Differences With Host After VF Migration — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Virtual Function MAC Address Differences With Host After VF Migration (MKT-S4N-CYB)

🟠 High   ⏱ 5–30 min  Last verified: 7 August 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug OLRNT-topic_mkt_s4n_cyb 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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AlmaLinux 8 — libXvMC — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libXvMC — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2020:4742 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 120618

Debian 11 – high CPU and disk I/O from systemd-journald

🟡 Medium   ⏱ 5–30 min  Last verified: 7 August 2022 Affected versions: Debian 11 📖 ~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 11 — gtkpod — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — gtkpod — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-37231 Upstream summary: A stack-buffer-overflow occurs in Atomicparsley 20210124.204813.840499f through APar_readX() in src/util.cpp while parsing a crafted mp4 file because of the missing boundary check. Table of contents […]

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Debian 11 — parser-mysql — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — parser-mysql — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-3736 Upstream summary: ltdl.c in libltdl in GNU Libtool 1.5.x, and 2.2.6 before 2.2.6b, as used in Ham Radio Control Libraries, Q, and possibly other products, attempts to […]

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Ubuntu 22.04 — pdfresurrect — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — pdfresurrect — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 7 August 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5282-1 Related CVEs: CVE-2019-14267 CVE-2019-14934 CVE-2020-20740 CVE-2020-9549 CVE-2021-3508 Upstream summary: It was discovered that PDFResurrect was incorrectly handling corrupted PDF files. An attacker could possibly use this issue to cause […]

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Ubuntu 18.04 — dpdk — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — dpdk — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 7 August 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5608-1 Related CVEs: CVE-2022-2132 CVE-2020-10722 CVE-2020-10723 CVE-2020-10724 CVE-2020-10725 CVE-2020-10726 https://launchpad.net/bugs/1853463 CVE-2019-14818  +1 more Upstream summary: It was discovered that DPDK incorrectly handled certain Vhost headers. A remote attacker could possibly […]

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Common Problems 116973

Ubuntu 22.04 LTS – NVIDIA driver fails under Secure Boot module signing – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 7 August 2022 Affected versions: Ubuntu 22.04 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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