Which item is the great majority of software vulnerabilities that have been discovered?

Which item is the great majority of software vulnerabilities that have been discovered?

A.
Stack vulnerabilities

B.
Software overflows

C.
Heap overflows

D.
Buffer overflows

Explanation:
Buffer overflow
A programming error that may result in erratic program behavior, a
memory access exception and program termination, or a possible breach of system
security. When user or other source interacts with an application, it has to carefully verify
all input, because the input might contain improperly formatted data, control sequences,
or simply too much data for the application to work with. When these things occur, a
buffer overflow condition can arise. Attackers realize this and try to exploit this
vulnerability. In fact, buffer overflows are a very common type of exploitation used by attackers.
Buffer overflows are one of the most commonly exploited computer security risks because of the
structure of how computers handle data.
An attacker who unleashes a buffer overflow exploit essentially tries to overwrite
memory on an application stack by supplying too much data to the input buffer. Because
this form of attack uses the application’s very nature against itself, it can be hard to stop.
As soon as an attacker discovers the vulnerabilities that lead to this condition, he or she
can repackage exploit code for widespread use.
A) Stack vulnerabilities are not the most common type of software vulnerability.
B) Software overflow – this concept just doesn’t exist.
C) Heap overflow
A type of buffer overflow that occurs in the heap data area. Memory on
the heap is dynamically allocated by the application at runtime and typically contains
program data. A heap overflow is not as likely to result in a condition permitting remote
code execution as a buffer overflow.