🟠 High ⏱ 5–30 min Last verified: 27 April 2021 Affected versions: Ubuntu 20.04 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 […]
🟠 High ⏱ 15–60 min Last verified: 25 April 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5265-1 Related CVEs: CVE-2020-27820 CVE-2021-3640 CVE-2021-3752 CVE-2021-3772 CVE-2021-4001 CVE-2021-4090 CVE-2021-4093 CVE-2021-4202 +12 more Upstream summary: Jeremy Cline discovered a use-after-free in the nouveau graphics driver of the Linux kernel during […]
🟡 Medium ⏱ 10–30 min Last verified: 25 April 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4935-1 Related CVEs: CVE-2021-1076 CVE-2021-1077 CVE-2021-1052 CVE-2021-1053 CVE-2021-1056 Upstream summary: It was discovered that the NVIDIA GPU display driver for the Linux kernel incorrectly performed access control. A local attacker […]
O Elasticsearch é uma plataforma para pesquisa e análise distribuídos de dados em tempo real. Ele é uma escolha popular devido a sua usabilidade, recursos poderosos e escalabilidade. Este artigo o guiará pela instalação do Elasticsearch,…
🟡 Medium ⏱ 5–30 min Last verified: 24 April 2021 📖 ~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 […]
Learn how to allow MySQL remote access safely: bind to a private IP, lock down port 3306 with firewalls, create least-privilege users, enable SSL/TLS, and use AI-assisted audits to prevent misconfigurations.
🟡 Medium ⏱ 5–30 min Last verified: 23 April 2021 📖 ~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 […]
🟢 Low ⏱ 5–15 min Last verified: 22 April 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7202-1 Related CVEs: CVE-2020-6923 Upstream summary: Kevin Backhouse discovered that HPLIP incorrectly handled certain MDNS responses. A remote attacker could use this issue to cause HPLIP to crash, resulting in […]
🟠 High ⏱ 15–60 min Last verified: 22 April 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4947-1 Related CVEs: CVE-2020-35519 CVE-2021-28375 CVE-2021-29646 CVE-2021-29650 CVE-2021-30002 https://launchpad.net/bugs/1924611 CVE-2021-3492 CVE-2021-3493 +12 more Upstream summary: Kiyin (尹亮) discovered that the x25 implementation in the Linux kernel contained overflows when handling […]
Implementing a firewall is an important step in securing your server. In this guide, you’ll learn how to construct a firewall that can be the basis for more complex rule sets. This firewall will focus primarily on providing reasonable defaults and establishing a framework that encourages extensibility.
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VAT Number ( 506152326 )
