ubuntu

Common Problems 117025

Ubuntu 22.04 LTS – initramfs generation fails from full /boot – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 23 October 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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Ubuntu 20.04 — libapache-mod-jk — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libapache-mod-jk — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 October 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6826-1 Related CVEs: CVE-2023-41081 Upstream summary: Karl von Randow discovered that mod_jk was vulnerable to an authentication bypass. If the configuration did not provide explicit mounts for all possible proxied […]

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Ubuntu 16.04 — dbus — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — dbus — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 21 October 2023 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6372-1 Related CVEs: CVE-2023-34969 CVE-2022-42010 CVE-2022-42011 CVE-2022-42012 CVE-2020-35512 CVE-2020-12049 CVE-2019-12749 CVE-2015-0245 Upstream summary: It was discovered that DBus incorrectly handled certain invalid messages. A local attacker could possibly use this […]

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How To Set Up a Node.js Application for Production on Ubuntu 22.04 — step-by-step Linux tutorial on Progressive Robot

How To Set Up a Node.js Application for Production on Ubuntu 22.04

Node.js is an open-source JavaScript runtime environment for building server-side and networking applications. The platform runs on Linux, macOS, FreeBSD, and Windows. Though you can run Node.js applications at the command line, this tutorial will help you harden and deploy them in the background for a production configuration.

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Ubuntu 22.04 — json-c — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — json-c — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 October 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6310-1 Related CVEs: CVE-2021-32292 Upstream summary: It was discovered that json-c incorrectly handled certain JSON files. An attacker could possibly use this issue to cause a crash or execute arbitrary […]

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

Ubuntu 22.04 — monit — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 October 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6571-1 Related CVEs: CVE-2022-26563 Upstream summary: Youssef Rebahi-Gilbert discovered that Monit did not properly process credentials for disabled accounts. An attacker could possibly use this issue to login to the […]

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Common Problems 117076

Ubuntu 22.04 unattended-upgrades Leaves dpkg in Interrupted State

🟡 Medium   ⏱ 5–30 min  Last verified: 19 October 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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Ubuntu 18.04 — zbar — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — zbar — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 October 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7118-1 Related CVEs: CVE-2023-40889 CVE-2023-40890 Upstream summary: It was discovered that ZBar did not properly handle certain QR codes. If a user or automated system using ZBar were tricked into […]

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Ubuntu 20.04 — minidlna — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — minidlna — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 October 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6398-1 Related CVEs: CVE-2022-26505 CVE-2023-33476 CVE-2020-12695 CVE-2020-28926 Upstream summary: It was discovered that ReadyMedia was vulnerable to DNS rebinding attacks. A remote attacker could possibly use this issue to trick […]

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