BUFFER OVERFLOW Meaning and
Definition
-
Buffer overflow is a security vulnerability that occurs when a program or process attempts to store more data in a buffer (a designated area of computer memory) than its capacity allows. A buffer is typically used to temporarily store data during the execution of a program, and its size is predetermined by the programmer. However, if too much data is stored in a buffer, it exceeds its allotted space and the excess data "overflows" into adjacent memory locations.
This overflow can have serious consequences, as the extra data can overwrite and corrupt the contents of neighboring memory locations, which may contain important information or code. The potential outcomes of a buffer overflow include crashing the program, initiating a denial-of-service attack, or executing arbitrary code. When arbitrary code execution occurs, an attacker can exploit this vulnerability to inject and execute malicious code, thereby taking control of the affected system.
Buffer overflow attacks are often accomplished by deliberately inputting a larger amount of data than the buffer can handle, causing the overflow. This exploit can be accomplished through various means, such as manipulating user input or exploiting flaws in the program's code.
To prevent buffer overflow vulnerabilities, programmers should implement proper input validation techniques, thoroughly check the length of inputs before storing them in buffers, and use secure coding practices. Additionally, operating systems and programming languages have incorporated various protections, such as address space layout randomization and stack canaries, to mitigate the risks associated with buffer overflow attacks.
Common Misspellings for BUFFER OVERFLOW
- vuffer overflow
- nuffer overflow
- huffer overflow
- guffer overflow
- byffer overflow
- bhffer overflow
- bjffer overflow
- biffer overflow
- b8ffer overflow
- b7ffer overflow
- budfer overflow
- bucfer overflow
- buvfer overflow
- bugfer overflow
- butfer overflow
- burfer overflow
- bufder overflow
- bufcer overflow
- bufver overflow
- bufger overflow
Etymology of BUFFER OVERFLOW
The term "buffer overflow" is composed of two parts: "buffer" and "overflow".
1. Buffer: In computer science, a buffer is a temporary storage area designed to hold data while it is being processed or transferred between different parts of a program or system. It can be seen as a reserved section of memory, often used to store input/output data or data being moved between different components.
2. Overflow: The term "overflow" refers to a situation where more data is put into a buffer than it can hold. It implies that the buffer's capacity has been exceeded, causing the data to spill over and overwrite adjacent memory locations that are not reserved for storage. This can lead to unpredictable behavior or even security vulnerabilities in a program or system.
Infographic
Add the infographic to your website:
