🟢 Low ⏱ 5–15 min Last verified: 24 May 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5231-1 Related CVEs: CVE-2020-35518 CVE-2021-3514 Upstream summary: It was discovered that 389 Directory Server presented to users, during authentication, an error message which could be used to discover if a […]
🟢 Low ⏱ 5–15 min Last verified: 24 May 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5192-2 Related CVEs: CVE-2021-44228 Upstream summary: USN-5192-1 fixed a vulnerability in Apache Log4j 2. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Chen Zhaojun discovered […]
In this guide, we will go through how to install and configure Git on an Ubuntu 22.04 server. We will cover how to install the software in two different ways: via the built-in package manager and via source. Each of these approaches comes with its own benefits depending on your specific needs.
🟡 Medium ⏱ 10–30 min Last verified: 23 May 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~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 […]
🟠 High ⏱ 15–60 min Last verified: 23 May 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5485-1 Related CVEs: CVE-2022-21123 CVE-2022-21125 CVE-2022-21166 CVE-2022-1158 CVE-2022-1966 CVE-2022-1972 CVE-2022-21499 CVE-2022-24958 +12 more Upstream summary: It was discovered that some Intel processors did not completely perform cleanup actions on multi-core […]
🟡 Medium ⏱ 5–30 min Last verified: 22 May 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 […]
🟢 Low ⏱ 5–15 min Last verified: 22 May 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5538-1 Related CVEs: CVE-2021-46828 Upstream summary: It was discovered that libtirpc incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. Table of […]
🟡 Medium ⏱ 10–30 min Last verified: 22 May 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5547-1 Related CVEs: CVE-2022-31607 CVE-2022-31608 CVE-2022-31615 Upstream summary: Le Wu discovered that the NVIDIA graphics drivers did not properly perform input validation in some situations. A local user could use […]
After setting up the bare recommended configuration for a new server, there are often some additional steps that are highly recommended in most cases. In this guide, we’ll continue the initial configuration by tackling some recommended, but optional procedures.
🟡 Medium ⏱ 5–30 min Last verified: 21 May 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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