NULL pointer dereference in the function aubio_source_avcodec_readframe which may lead to DoS when playing a crafted audio file (CVE-2017-17554).
A crash in aubio_pitch_set_unit (CVE-2018-14522).
A buffer overrread resulting in crash or information leakage in new_aubio_pitchyinfft (CVE-2018-14523).