ubuntu

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 20 September 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7107-1 Related CVEs: CVE-2023-45853 CVE-2022-37434 CVE-2018-25032 Upstream summary: It was discovered that Minizip in zlib incorrectly handled certain zip header fields. An attacker could possibly use this issue to cause […]

Read more
Ubuntu 22.04 — file — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — file — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 September 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6359-1 Related CVEs: CVE-2022-48554 Upstream summary: It was discovered that file incorrectly handled certain malformed files. An attacker could use this issue to cause a denial of service, or possibly […]

Read more
Common Problems 117629

Ubuntu 20.04 LTS NIC Driver Not Loaded After Kernel Update

🟡 Medium   ⏱ 5–30 min  Last verified: 19 September 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 […]

Read more
Ubuntu 14.04 — xerces-c — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — xerces-c — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 September 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6590-1 Related CVEs: CVE-2018-1311 CVE-2023-37536 Upstream summary: It was discovered that Xerces-C++ was not properly handling memory management operations when parsing XML data containing external DTDs, which could trigger a […]

Read more
Getting Started With Puppet Code: Manifests and Modules — step-by-step Linux tutorial on Progressive Robot

Getting Started With Puppet Code: Manifests and Modules

After setting up Puppet in an agent/master configuration, you may need some help writing Puppet manifests and modules. In order to use Puppet effectively, you must understand how manifests and modules are constructed. This tutorial covers Puppet code basics, and will show you how to construct manifests and modules that will help you get started with using Puppet to manage your server environment.

Read more
Ubuntu 20.04 — sqlparse — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — sqlparse — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 September 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6064-1 Related CVEs: CVE-2023-30608 Upstream summary: It was discovered that SQL parse incorrectly handled certain regular expression. An attacker could possibly use this issue to cause a denial of service. […]

Read more
Ubuntu 20.04 — perl — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — perl — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 September 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6517-1 Related CVEs: CVE-2022-48522 CVE-2023-47038 CVE-2023-31484 CVE-2020-16156 CVE-2020-10543 CVE-2020-10878 CVE-2020-12723 Upstream summary: It was discovered that Perl incorrectly handled printing certain warning messages. An attacker could possibly use this issue […]

Read more
Common Problems 117506

Ubuntu 20.04 Time Drift and NTP Sync Problems

🟡 Medium   ⏱ 5–30 min  Last verified: 17 September 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 […]

Read more
How To Host a Website with Caddy on Ubuntu 22.04 — step-by-step Linux tutorial on Progressive Robot

How To Host a Website with Caddy on Ubuntu 22.04

Caddy is a web server designed around simplicity and security that comes with a number of features that are useful for hosting websites. In this tutorial, you’ll build Caddy from source and use it to host a website secured with HTTPS.

Read more
Ubuntu 20.04 — owslib — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — owslib — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 September 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8247-1 Related CVEs: CVE-2023-27476 Upstream summary: It was discovered that OWSLib did not properly disable entity resolution within its XML parser. An attacker could possibly use this issue to read […]

Read more
CHAT