Linux

Alpine Linux 3.18 — jupyter-notebook — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — jupyter-notebook — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 6.4.12-r0 📖 ~4 min read  •  Source: Alpine secdb entry — jupyter-notebook 6.4.12-r0 Related CVEs: CVE-2022-29238 CVE-2022-24758 Upstream summary: Alpine community repository for vv3.18 ships jupyter-notebook 6.4.12-r0 which addresses CVE-2022-29238. Table of contents Symptom & Impact […]

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How to Configure PHP-FPM with Nginx on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure PHP-FPM with Nginx on RHEL 8

PHP-FPM (FastCGI Process Manager) is the recommended interface between Nginx and PHP on RHEL 8, replacing the older mod_php approach with a more flexible and performant process pool model. Rather than embedding PHP inside the web server, PHP-FPM runs as a separate systemd-managed service that Nginx communicates with over a Unix socket, isolating the two […]

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Alpine Linux 3.18 — ipmitool — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — ipmitool — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 1.8.18-r9 📖 ~4 min read  •  Source: Alpine secdb entry — ipmitool 1.8.18-r9 Related CVEs: CVE-2020-5208 Upstream summary: Alpine community repository for vv3.18 ships ipmitool 1.8.18-r9 which addresses CVE-2020-5208. Table of contents Symptom & Impact Environment […]

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Oracle Linux 9 — dhcp security and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — dhcp security and — enhancement update — new behaviour and fixes (ELSA-2022-8385)

🟡 Medium   ⏱ 10–30 min  Last verified: 8 June 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-8385 Related CVEs: CVE-2021-25220 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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AlmaLinux 9 — edk2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — edk2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2024:2264 Related CVEs: CVE-2022-36763 CVE-2022-36764 CVE-2023-3446 CVE-2023-45229 CVE-2023-45231 CVE-2023-45232 CVE-2023-45233 CVE-2023-45235  +12 more Upstream summary: EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains […]

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Debian 11 — php-nyholm-psr7 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — php-nyholm-psr7 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 June 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-29197 Upstream summary: guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Affected versions are subject to improper header parsing. An attacker could sneak in a newline […]

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Ubuntu 22.04 — tinyxml — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — tinyxml — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 June 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6612-1 Related CVEs: CVE-2023-34194 Upstream summary: It was discovered that TinyXML incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted XML […]

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Ubuntu 20.04 — booth — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — booth — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 June 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5556-1 Related CVEs: CVE-2022-2553 Upstream summary: It was discovered that Booth incorrectly handled user authentication. An attacker could use this vulnerability to cause a denial of service. Table of contents […]

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Ubuntu 20.04 — swift — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — swift — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 June 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5852-1 Related CVEs: CVE-2022-47950 Upstream summary: It was discovered that OpenStack Swift incorrectly handled certain XML files. A remote authenticated user could possibly use this issue to obtain arbitrary file […]

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Common Problems 117416

Ubuntu 20.04 LTS – boot drops to initramfs after unclean shutdown – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 June 2023 Affected versions: Ubuntu 20.04 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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