How To Install and Configure Elasticsearch on Ubuntu 18.04
Elasticsearch is a platform for distributed search and analysis of data in real time.
Ubuntu 18.04 LTS – Docker daemon fails to start after upgrade
🟠 High ⏱ 5–30 min Last verified: 3 December 2022 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~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 […]
Ubuntu 22.04 LTS – GRUB update fails after disk UUID change – Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 3 December 2022 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 […]
Ubuntu 22.04 — lua5.4 — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 3 December 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6916-1 Related CVEs: CVE-2022-28805 CVE-2022-33099 Upstream summary: It was discovered that Lua did not properly generate code when "_ENV" is constant. An attacker could possibly use this issue to cause […]
Ubuntu 14.04 — e2fsprogs — multiple vulnerabilities (5 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 3 December 2022 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5464-1 Related CVEs: CVE-2022-1304 CVE-2019-5188 CVE-2019-5094 CVE-2015-0247 CVE-2015-1572 Upstream summary: Nils Bars discovered that e2fsprogs incorrectly handled certain file systems. A local attacker could use this issue with a crafted […]
How To Install and Configure Config Server Firewall (CSF) on Ubuntu
Config Server Firewall (CSF) is a free and advanced firewall for most Linux distributions and Linux based VPS. Learn how to install and configure on Ubuntu.
Ubuntu 22.04 LTS – Kubelet node NotReady from cgroup mismatch – Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 1 December 2022 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 […]
Ubuntu 18.04 — pdns-recursor — multiple vulnerabilities (6 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 1 December 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7203-1 Related CVEs: CVE-2018-1046 CVE-2018-10851 CVE-2018-14626 CVE-2018-14644 CVE-2020-17482 CVE-2022-27227 Upstream summary: Wei Hao discovered that PowerDNS Authoritative Server incorrectly handled memory when accessing certain files. An attacker could possibly use […]
Ubuntu 18.04 — connman — multiple vulnerabilities (9 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 1 December 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6236-1 Related CVEs: CVE-2021-26675 CVE-2021-26676 CVE-2021-33833 CVE-2022-23096 CVE-2022-23097 CVE-2022-23098 CVE-2022-32292 CVE-2022-32293 +1 more Upstream summary: It was discovered that ConnMan could be made to write out of bounds. A remote […]
Ubuntu 22.04 LTS – NTP is unsynchronized and TLS or package operations fail
🟡 Medium ⏱ 5–30 min Last verified: 30 November 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 […]
