Jun 17, 2016 · I hit a buffer overflow because I initialized a buffer as a Uint8Array() array then replaced that buffer with a Float32Array()

Feb 22, 2009 · A buffer overflow is basically when a crafted section (or buffer) of memory is written outside of its intended bounds. If an attacker can manage to make this happen from outside of a program it can cause security problems as it could potentially allow them to manipulate arbitrary memory locations, although many modern operating systems protect ...

Jan 29, 2025 · Attacker would use a buffer-overflow exploit to take advantage of a program that is waiting on a user’s input. There are two types of buffer overflows: stack-based and heap-based. Heap-based, which are difficult to execute and the least common of the two, attack an application by flooding the memory space reserved for a program.

Understanding how buffer overflow works and how to prevent it is crucial for secure coding practices. What is Buffer Overflow? Buffer overflow occurs when a program writes more data to a buffer than it can hold, leading to memory corruption and potential security vulnerabilities.

Jan 31, 2025 · The ArrayBuffer object is used to represent a generic raw binary data buffer. It is an array of bytes, often referred to in other languages as a "byte array".

Oct 5, 2024 · Node.js buffers are used for handling data input/output. Buffers can hold arbitrary binary data. If you're experiencing issues with buffer overflow, it could be due to multiple reasons: Buffer size limit: Each buffer has a maximum size and once that is exceeded, new data will overwrite the existing data instead of creating a new one.

Feb 5, 2024 · Specifically, we will be looking at the stack-based buffer overflow. We will be getting down and dirty with C, assembly and GDB. If you don’t want to go that deep but still want to better...

Buffer objects are used to represent a fixed-length sequence of bytes. Many Node.js APIs support Buffer s. The Buffer class is a subclass of JavaScript's <Uint8Array> class and extends it with methods that cover additional use cases. Node.js APIs accept plain <Uint8Array> s wherever Buffer s are supported as well.

Let's say I want to write more data than the Buffer has room for. What is the recommended way to grow it? It doesn't seem like there is a .grow method or similar. I can call Buffer.from(buf) to create a new Buffer, but that seems inefficient.

In this article, we'll unravel the enigma surrounding Buffer Overflows, explore how attackers exploit them, and equip ourselves with JavaScript examples to combat this menace. Buffer Overflow arises when a program attempts to write data beyond the bounds of a buffer, leading to memory corruption.