Linux

Common Problems 117058

Ubuntu 22.04 LTS – system drops to initramfs on boot – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 7 September 2023 Affected versions: Ubuntu 22.04 LTS (Jammy) 📖 ~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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Oracle Linux 9 — grafana security and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — grafana security and — enhancement update — new behaviour and fixes (ELSA-2023-2167)

🟡 Medium   ⏱ 10–30 min  Last verified: 6 September 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2167 Related CVEs: CVE-2022-41715 CVE-2022-39229 CVE-2022-2880 CVE-2022-27664 CVE-2022-35957 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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Common Problems 120042

Debian 12 – nftables rules are not restored after reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 6 September 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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Amazon Linux 2023 — kernel-livepatch-6.1.34-58.102 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — kernel-livepatch-6.1.34-58.102 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023LIVEPATCH-2023-013 Related CVEs: CVE-2023-3609 CVE-2023-3776 Upstream summary: A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, u32_set_parms() will […]

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How to Set Up CentOS Stream 9 with KVM Virtualization — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up CentOS Stream 9 with KVM Virtualization

Introduction Setting up set up centos stream 9 with kvm virtualization on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up CentOS Stream 9 with KVM Virtualization, with all the commands you need, the SELinux and firewalld considerations to […]

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Common Problems 116931

Ubuntu 22.04 LTS – netplan apply fails due to YAML syntax error – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 6 September 2023 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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Debian 12 — ruby-rmagick — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ruby-rmagick — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-5349 Upstream summary: A memory leak flaw was found in ruby-magick, an interface between Ruby and ImageMagick. This issue can lead to a denial of service (DOS) by […]

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Debian 12 — xmonad-contrib — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — xmonad-contrib — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-1436 Upstream summary: The XMonad.Hooks.DynamicLog module in xmonad-contrib before 0.11.2 allows remote attackers to execute arbitrary commands via a web page title, which activates the commands when the […]

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Debian 12 — scala — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — scala — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-15288 Upstream summary: The compilation daemon in Scala before 2.10.7, 2.11.x before 2.11.12, and 2.12.x before 2.12.4 uses weak permissions for private files in /tmp/scala-devel/${USER:shared}/scalac-compile-server-port, which allows local […]

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Alpine Linux 3.18 — py3-sqlparse — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — py3-sqlparse — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 0.4.2-r0 📖 ~4 min read  •  Source: Alpine secdb entry — py3-sqlparse 0.4.2-r0 Related CVEs: CVE-2021-32839 Upstream summary: Alpine community repository for vv3.18 ships py3-sqlparse 0.4.2-r0 which addresses CVE-2021-32839. Table of contents Symptom & Impact Environment […]

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