A condition at an interface under which more input can be placed into a buffer or data holding area than the capacity allocated, overwriting other information. Adversaries exploit such a condition to crash a system or to insert specially crafted code that allows them to gain control of the system.
Sources:
NIST SP 800-82r3
under Buffer Overflow
from
NIST SP 800-28 Version 2
A condition at an interface under which more input can be placed into a buffer or data holding area than the intended capacity allocated (due to insecure or unbound allocation parameters), which overwrites other information. Attackers exploit such a condition to crash a system or to insert specially crafted code that allows them to gain control of the system.
Sources:
NIST SP 800-28 Version 2
under Buffer Overflow