BLOG ESPECIALIZADO NO MUNDO LINUX. Blog de Linux com vídeo aulas, notícias do mundo Linux e do Software Livre.
Critical security vulnerabilities in cJSON, an ultralightweight JSON parser, affect Ubuntu 20.04 LTS through 25.10. These denial-of-service and memory access flaws (CVE-2023-26819, CVE-2023-53154, CVE-2025-57052) enable potential arbitrary code execution. Learn patch instructions, exploit mitigation, and enterprise security implications in this comprehensive 1,200-word advisory.
Critical vulnerability CVE-2026-23490 in pyasn1 ASN.1 library affects Ubuntu systems, enabling denial of service via memory exhaustion. Complete technical analysis, patching guide, and security implications for Python applications.
Critical security update: Ubuntu Security Notice USN-7974-1 addresses multiple libxml2 denial-of-service vulnerabilities (CVE-2025-8732, CVE-2026-0989, CVE-2026-0990, CVE-2026-0992). Our complete guide provides patching instructions for all affected Ubuntu versions, technical analysis, and enterprise mitigation strategies.
Critical CVE-2023-7250 advisory for iperf3 on Ubuntu systems. This detailed guide explains the vulnerability, provides patching instructions, and offers advanced network security hardening strategies to protect your infrastructure from traffic amplification attacks. Learn mitigation steps from cybersecurity experts.
Urgent Ubuntu 20.04 LTS security advisory: Comprehensive guide to patching the python-apt regression (USN-7916-2) fixing CVE-2025-6966, a critical denial-of-service vulnerability affecting libapt-pkg Python interface. Learn update commands, vulnerability analysis, and enterprise mitigation strategies for DevOps and sysadmins.
A critical vulnerability in libpng (CVE-2025-66293) has been patched for Ubuntu systems. This cybersecurity advisory provides an in-depth exploit analysis, step-by-step patching instructions for Ubuntu 24.04 LTS, and actionable risk mitigation strategies for enterprise security teams to protect against remote code execution. Learn how to secure your systems now.
Critical Python vulnerability CVE-2025-13836 exposed in Ubuntu Security Notice USN-7951-1 allows denial-of-service attacks through malicious HTTP traffic. Learn which Python 3.8-3.14 versions on Ubuntu 18.04-25.10 are affected, immediate patching instructions, enterprise mitigation strategies, and long-term security hardening approaches for Python network applications.
Critical PHP vulnerabilities CVE-2025-14177, CVE-2025-14178 & CVE-2025-14180 affect all Ubuntu LTS releases. This definitive guide provides sysadmins with patching instructions, exploit analysis, and mitigation strategies to prevent denial-of-service and data breaches. Secure your servers now.
In-depth analysis of Ubuntu's critical Tornado security patch (USN-7950-1), examining CVE-2025-67724 vulnerabilities, Python web security best practices, and enterprise mitigation strategies for system administrators and DevOps teams. Learn how to secure asynchronous web servers against HTTP request smuggling and response injection attacks.
Critical Security Alert: Discover the severe GnuPG vulnerability (CVE-2025-68973) affecting all Ubuntu versions from 16.04 to 25.10. Learn the remote code execution risk, get detailed patching instructions for each LTS release, and understand why immediate system updates are essential for enterprise Linux security. Full USN-7946-1 analysis inside.
Critical GnuPG vulnerability CVE-2025-68973 exposes Ubuntu 16.04 LTS and 14.04 LTS to remote code execution attacks. Learn about patch management strategies, Ubuntu Pro requirements, and enterprise cybersecurity implications for legacy Linux infrastructure. Essential reading for system administrators and security professionals.
Critical libsodium security vulnerability CVE-2025-69277 exposes sensitive data across Ubuntu 22.04 LTS, 24.04 LTS, 25.04 & 25.10. Learn patch instructions, attack implications, and enterprise mitigation strategies with our comprehensive 2025 security advisory. 178+ characters.
Urgent security advisory: CVE-2025-66034 exposes a critical Remote Code Execution (RCE) flaw in FontTools via malicious .designspace files. Learn patch details for Ubuntu 24.04, Fedora 42, and how to mitigate arbitrary file write vulnerabilities to secure your Linux systems.
Canonical confirms Ubuntu 26.04 LTS "Resolute Raccoon" will ship with the Linux 6.20 kernel, potentially rebadged as Linux 7.0. This strategic shift to the latest upstream kernel promises enhanced performance, security, and hardware support for enterprise deployments and developers. Learn what this means for the future of Ubuntu LTS releases.
