ubuntu

Common Problems 117428

Ubuntu 20.04 LTS – apt update fails due to expired repository Release file

🟡 Medium   ⏱ 5–30 min  Last verified: 29 August 2020 Affected versions: Ubuntu 20.04 LTS Ubuntu 20.04 Ubuntu 20.04.6 📖 ~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 Install OpenStack on Ubuntu 18.04  with DevStack — step-by-step Linux tutorial on Progressive Robot

How to Install OpenStack on Ubuntu 18.04 with DevStack

URL: https://www.progressiverobot.com/install-openstack-ubuntu-devstack/ Openstack is a free and opensource IaaS cloud platform that handles cloud compute, storage and network resources. It comes with an intuitive dashboard that enables systems administrators to provide and monitor these resources. You can seamlessly install OpenStack locally on your Ubuntu 18.04 instance for learning and testing purposes using Devstack. Devstack is […]

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Installing mod_wsgi on Ubuntu 12.04 — step-by-step Linux tutorial on Progressive Robot

Installing mod_wsgi on Ubuntu 12.04

mod_wsgi is a simple and easy to setup tool that serves python web apps from Apache server. It is also one of the recommended ways of getting Django into production. This article covers the steps required to installing an setup mod_wsgi with Apache.

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Ubuntu 18.04 — libcroco — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libcroco — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 August 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6958-1 Related CVEs: CVE-2017-7960 CVE-2017-8834 CVE-2017-8871 CVE-2020-12825 Upstream summary: It was discovered that Libcroco was incorrectly accessing data structures when reading bytes from memory, which could cause a heap buffer […]

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Common Problems 118621

Ubuntu 16.04 LTS – AppArmor profile blocks application startup – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 26 August 2020 Affected versions: Ubuntu 16.04 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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Common Problems 117480

Ubuntu 20.04 LTS Permission Denied on Application Data Directory

🟡 Medium   ⏱ 5–30 min  Last verified: 26 August 2020 📖 ~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 — pngcheck — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

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

🟢 Low   ⏱ 5–15 min  Last verified: 26 August 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6182-1 Related CVEs: CVE-2020-27818 CVE-2020-35511 Upstream summary: It was discovered that pngcheck incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted […]

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

Ubuntu 20.04 — ant — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 August 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4874-1 Related CVEs: CVE-2020-1945 Upstream summary: It was discovered that Apache Ant created temporary files with insecure permissions. An attacker could use this vulnerability to read sensitive information leaked into […]

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