Linux Security Articles

Secure Boot sits at the point where firmware and operating system trust intersect, and it decides what code is allowed to start the machine. Most systems treat it like background plumbing, but it has a direct influence on Linux security best practices because it defines whether the kernel you think you are running is actually the one that loads. When it works as intended, it gives you a predictable baseline for the rest of the stack. When it doesn’t, the failure usually shows up in places that are hard to diagnose and even harder to monitor.

React2Shell is a server-side vulnerability that turns a normal web request into code execution. It allows unauthenticated remote code execution, without credentials, tokens, or prior access. The resulting commands run as the same Linux service user that hosts the application.

Out-of-bounds reads aren’t flashy, but they sit close to the root of a lot of quiet trouble in Linux security. The bug shows up when software pulls data past a buffer’s edge and exposes pieces of memory it never meant to share. Most of the time, the leak feels small. Sometimes it hands over the kind of detail an attacker can fold into an ASLR bypass used to execute malicious code or a later privilege move.