🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5957-1 Related CVEs: CVE-2018-19105 CVE-2021-21898 CVE-2021-21899 CVE-2021-21900 CVE-2021-45341 CVE-2021-45342 CVE-2021-45343 Upstream summary: Cody Sixteen discovered that LibreCAD incorrectly handled memory when parsing DXF files. An attacker could use this issue […]
Learn how to create, clean, and validate high-quality data for fine-tuning LLMs, including synthetic data generation and best formats.
NIC bonding combines multiple physical network interfaces into a single logical interface, providing link redundancy, increased throughput, or both — depending on the bonding mode selected. On RHEL 9, NetworkManager is the canonical tool for managing bonded interfaces, replacing the older ifcfg scripts. This tutorial covers creating a bond with nmcli, adding slave interfaces, assigning […]
This is the third article in the Introduction to SELinux series. This article focuses on SELinux users and role-based access. Learn how to check logs and resolve errors.
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.4.2-r0 📖 ~4 min read • Source: Alpine secdb entry — py3-sqlparse 0.4.2-r0 Related CVEs: CVE-2021-32839 Upstream summary: Alpine community repository for vedge ships py3-sqlparse 0.4.2-r0 which addresses CVE-2021-32839. Table of contents Symptom & Impact Environment […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-2036 Related CVEs: CVE-2021-31204 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
🟠 High ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: 14.04 📖 ~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 […]
🟡 Medium ⏱ 15–45 min Last verified: 25 May 2026 Affected versions: IBM AIX 7.3 📖 ~4 min read • Source: NVD CVE-1999-0513, IBM PSIRT advisory page CVE: CVE-1999-0513 NVD summary: ICMP messages to broadcast addresses are allowed, allowing for a Smurf attack that can cause a denial of service. References: exchange.xforce.ibmcloud.com/vulnerabilities/CVE exchange.xforce.ibmcloud.com/vulnerabilities/CVE […]
Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying configure multipath i/o on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Multipath I/O on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: p5-DBI — insecure temporary file creation vulnerability Related CVEs: CAN-2005-0077 Upstream summary: Javier Fernández-Sanguino Peña reports: The DBI library, the Perl5 database interface, creates a temporary PID file in an […]
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