ubuntu

Ubuntu 14.04 — aide — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — aide — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 22 October 2025 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7697-1 Related CVEs: CVE-2025-54409 CVE-2025-54389 CVE-2021-45417 Upstream summary: Rajesh Pangare discovered that AIDE incorrectly handled filenames. A local attacker could possibly use this issue to bypass the detection of malicious […]

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Ubuntu 18.04 — git — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — git — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 22 October 2025 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5376-6 Related CVEs: https://launchpad.net/bugs/2142239 CVE-2024-52006 CVE-2024-50349 https://launchpad.net/bugs/2116251 CVE-2025-48385 CVE-2025-46835 CVE-2025-27614 CVE-2025-48386  +12 more Upstream summary: USN-5376-4 fixed a regression in Git. This update provides the corresponding update for Ubuntu 18.04 […]

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Common Problems 116565

Ubuntu 24.04 LTS – sudo stops working after bad sudoers edit – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 21 October 2025 Affected versions: Ubuntu 24.04 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 22.04 — python-apt — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — python-apt — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 October 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7916-1 Related CVEs: CVE-2025-6966 Upstream summary: Julian Andres Klode discovered that python-apt incorrectly handled deb822 configuration files. An attacker could use this issue to cause python-apt to crash, resulting in […]

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Common Problems 116433

Ubuntu 24.04 LTS – unattended-upgrades causes sustained high CPU and I/O

🟡 Medium   ⏱ 5–30 min  Last verified: 21 October 2025 Affected versions: Ubuntu 24.04 LTS Ubuntu 24.04 Ubuntu 24.04.1 📖 ~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 Create RAID Arrays with mdadm on Ubuntu — step-by-step Linux tutorial on Progressive Robot

How To Create RAID Arrays with mdadm on Ubuntu

The mdadm utility can be used to create and manage storage arrays using Linux’s software RAID capabilities. Administrators have great flexibility in coordinating their individual storage devices and creating logical storage devices that have greater performance or…

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Common Problems 116608

Ubuntu 24.04 LTS SSH Service Fails After Host Key or Config Changes

🔴 Critical   ⏱ 5–30 min  Last verified: 20 October 2025 Affected versions: Ubuntu 24.04 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 16.04 — ruby2.3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — ruby2.3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 20 October 2025 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8137-1 Related CVEs: CVE-2025-61594 CVE-2024-35176 CVE-2025-6442 CVE-2024-41123 CVE-2024-41946 CVE-2024-47220 CVE-2024-39908 CVE-2024-49761  +12 more Upstream summary: It was discovered that the Ruby URI gem did not properly handle sensitive information when […]

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Ubuntu 22.04 — cifs-utils — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — cifs-utils — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 October 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7536-2 Related CVEs: https://launchpad.net/bugs/2113906 https://launchpad.net/bugs/2112614 CVE-2025-2312 CVE-2020-14342 CVE-2021-20208 CVE-2022-27239 CVE-2022-29869 Upstream summary: USN-7536-1 fixed vulnerabilities in cifs-utils. This update introduced a regression in certain environments. This update fixes the problem. […]

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Common Problems 116499

Ubuntu 24.04 LTS Bluetooth Headset Microphone Missing HFP Profile

🟡 Medium   ⏱ 5–30 min  Last verified: 20 October 2025 📖 ~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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