A stack buffer is a type of buffer or temporary location created within a computer’s memory for storing and retrieving data from the stack. It enables the storage of data elements within the stack, which can later be accessed programmatically by the program’s stack function or any other fun...
In programming, a stack is abufferthat is used to temporarily store requests. This type of stack has a bounded bottom and all the operations are carried out on the top position. Whenever an element is added to the stack by the push operation, the top value is incremented by one, and wh...
A stack overflow is a type ofbuffer overflowerror that occurs when a computer program tries to use more memory space in the call stack than has been allocated to that stack. The call stack, also referred to as the stack segment, is a fixed-sizedbufferthat stores local function variables and...
Buffer overflow is a software coding error that enables hackers to exploit vulnerabilities, steal data, and gain unauthorized access to corporate systems. Discover what is a buffer overflow attack and how Fortinet can mitigate and prevent overflow attack
Also known as a stack buffer overflow, stack smashing is a type of security vulnerability used by threat actors to execute malicious code on a machine. The vulnerability occurs when the stack of a computer application or operating system is forced to overflow. This problem can lead to subverting...
Stack-based buffer overflow or stack buffer overrun attack The stack holds data in a last-in, first-out structure. It is a continuous space in memory used to organize data associated with function calls, including function parameters, function local variables and management information, such as fr...
Discover the impact of buffer overflow in cyber security. Explore various types and their potential consequences on system security.
Here is a very simple example of a C program that is vulnerable to a stack overflow: main(intargc,char*argv[]) { func(argv[1]); }voidfunc(char*v){charbuffer[10]; strcpy(buffer, v); } Thestrcpyfunction in the above example copies the command argument into the destination buffer varia...
Buffer overflows are one of the most common software weaknesses present today. They can happen inadvertently or when a cyber attacker causes it. Either way, it opens opportunities for attack. One real-life example of a buffer overflow attack is the 1988 Morris Worm. The Morris Worm was acomp...
Stackoverflow attacks are used to damage stack data. The attacker can exploit buffer overflow vulnerabilities to damage objects, including ARG (actual parameter when the function is called), RETADDR (address of the next operation instruction in the memory), EBP (stack frame status value before the...