Ubuntu 22.04

Ubuntu 22.04 — dojo — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — dojo — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 26 September 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7569-1 Related CVEs: CVE-2021-23450 CVE-2020-4051 CVE-2019-10785 CVE-2018-15494 Upstream summary: It was discovered that Dojo did not correctly handle DataGrids. An attacker could possibly use this issue to execute arbitrary code. […]

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How To Secure Nginx with Let's Encrypt on Debian 11 — step-by-step Linux tutorial on Progressive Robot

How To Secure Nginx with Let’s Encrypt on Debian 11

Let’s Encrypt is a Certificate Authority (CA) that provides an accessible way to obtain and install free TLS/SSL certificates, thereby enabling encrypted HTTPS on web servers. It simplifies the process by providing a software client, Certbot, that attempts to automate most (if not all) of the required steps. In this tutorial, you will use Certbot to obtain a free SSL certificate for Nginx on Ubuntu 22.04, and set up your certificate to renew automatically.

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Ubuntu 22.04 — php-dompdf — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — php-dompdf — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 September 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6277-2 Related CVEs: CVE-2021-3838 CVE-2022-2400 Upstream summary: USN-6277-1 fixed vulnerabilities in Dompdf. This update provides the corresponding updates for Ubuntu 22.04 LTS. Original advisory details: It was discovered that Dompdf […]

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How to Install Julia Programming Language on Ubuntu 22.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Julia Programming Language on Ubuntu 22.04

Julia is a programming language designed to be high performance in computation and analysis. It is popular in data science, scientific research, visualization, machine learning, and also for more general purpose application building. The official site provides a [live demo](https://julialang.org/learning/tryjulia/) for you to try out the Julia language, but for practical use and development you will need to install it onto your system.

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Common Problems 117054

Ubuntu 22.04 LTS Wi-Fi Adapter Missing Firmware

🟡 Medium   ⏱ 5–30 min  Last verified: 24 September 2022 📖 ~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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Common Problems 116928

Ubuntu 22.04 LTS – apt update reports release file changed – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 23 September 2022 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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Common Problems 116937

Ubuntu 22.04 GRUB Rescue Prompt After Kernel Update

🟡 Medium   ⏱ 5–30 min  Last verified: 22 September 2022 📖 ~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 22.04 — mujs — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — mujs — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 21 September 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7575-1 Related CVEs: CVE-2022-30974 CVE-2021-45005 CVE-2022-30975 Upstream summary: It was discovered that MuJS did not correctly handle try/finally statements, which could lead to a buffer overflow. An attacker could possibly […]

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Common Problems 117017

Ubuntu 22.04 Docker Daemon Fails with cgroup v2 Configuration Errors

🟡 Medium   ⏱ 5–30 min  Last verified: 21 September 2022 📖 ~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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Common Problems 117019

Ubuntu 22.04 LTS – snap install fails with cannot communicate with server

🟡 Medium   ⏱ 5–30 min  Last verified: 20 September 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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