GPAC contains a heap-based buffer overflow in "gf_base64_encode". It can be triggered via MP4Box. This issue affects versions prior to 2.2.0.
CWE-787 - Out-of-Bounds Write
Out-of-bounds write vulnerability is a memory access bug that allows software to write data past the end or before the beginning of the intended buffer. This may result in the corruption of data, a crash, or arbitrary code execution.