GPAC Project on Advanced Content is an open source cross-platform library that implements the MPEG-4 system standard and provides tools for media playback, vector graphics, and 3D rendering.The MPEG-4 decoding feature of GPAC Project on Advanced Content library 1.0.1 suffers from an integer overflow vulnerability. An attacker can cause improper memory allocation with the help of specially crafted MPEG-4 input, resulting in a heap buffer overflow.