BLOG ESPECIALIZADO NO MUNDO LINUX. Blog de Linux com vídeo aulas, notícias do mundo Linux e do Software Livre.
Vulnerabilidade CVE-2026-48840 no Exim4 pode vazar memória do servidor e derrubar a proteção ASLR. Aprenda a verificar se você está vulnerável com comandos reais para Debian, aplique o script de correção automatizado e implemente mitigações alternativas com iptables. Guia completo para administradores de servidores Linux que querem proteger seus MTAs de forma definitiva.
Vulnerabilidade no Postfix pode derrubar seu servidor de e-mail. Guia prático para Ubuntu: veja se está vulnerável, aplique correção com script, mitigue com iptables/AppArmor e evite o próximo ataque. Inclui recomendações de livro afiliado para aprofundamento.
libpng vulnerability? Learn how to check your Debian system's exposure to CVE-2026-34757 with practical audit commands, deploy an automated bash fix script, and implement iptables/apparmor mitigations when patching isn't possible. No AI jargon – just actionable security commands every sysadmin can use today.
Stop worrying about image injection attacks. Learn to check, fix, and automate OpenStack Glance vulnerability mitigation on Ubuntu with real commands, scripts, and workarounds.
A stack overflow in Kea DHCP (CVE-2026-3608) can crash your DHCP servers remotely. Learn to check, patch, or block it with iptables. Includes automation scripts for Ubuntu, Rocky, and SUSE. No fluff, just commands.
A RootlessKit vulnerability can expose your container runtime. Learn how to check your version on SUSE, apply an automated fix, and implement temporary firewall mitigations. Includes a top book recommendation to master container security for years.
RootlessKit security updates don't have to be urgent news. Learn to check, fix, and mitigate container risks on Ubuntu, Rocky Linux, SUSE – plus a repeatable automation script. Stay secure long after the CVE fades.
Secure your container builds: A permanent guide to Buildah security updates. Includes check scripts, automation, and mitigation for Ubuntu, Rocky, SUSE. (188 chars)
Use-after-free in libpng16 (CVE-2026-33416) allows remote code execution via malformed PNGs. Learn to check, patch, or block attacks on Ubuntu, Rocky, SUSE. Includes automation script and AppArmor mitigation.
Stop Node.js CPU attacks on Cockpit & Podman. Check Ubuntu, Rocky, SUSE with 1 command. Automation script + Docker lab + iptables fallback.
Check, fix, and block Poetry path traversal (CVE-2026-34591) with one bash script. Works on Ubuntu, Rocky, SUSE. Includes Docker lab.
Critical Ubuntu 22.04 libpng security patch (2025-b9e4e5a954) resolves GSSAPI OOB read vulnerability. Enterprise guide to CVE-2022-2469 mitigation & Fedora updates.
Unlock enterprise-grade web server performance with our definitive Nginx 1.29.7 guide. Discover MPTCP support, security fixes, ROI calculators & pricing comparisons. Free infrastructure optimization checklist included. Expert analysis by certified cloud architects.
A critical analysis of the openSUSE Tumbleweed security advisory for rubygem-loofah (Version 2.23.1). This update patches six high-impact CVEs, including DoS and XSS vulnerabilities. We dissect the flaws, provide remediation steps, and explain why proactive patch management for Ruby on Rails applications is non-negotiable for enterprise infrastructure security in 2026.
Critical Ubuntu Libpng Security Update (USN-6629-3): Mitigating Heap Buffer Overflow Vulnerabilities (CVE-2025-XX). A deep technical analysis of the libpng 1.6.43-1ubuntu0.20.04.1 patch. Essential audit for SysAdmins, DevSecOps, and compliance officers securing enterprise Linux infrastructures.
The upcoming Linux 6.20~7.0 kernel includes a critical patch fixing internal speaker support for the Intel-powered LG Gram Style 14 laptop, ending years of user workarounds. Explore the technical details, implications for Linux compatibility, and what this means for high-end ultrabook users.
