aubio v0.4.0 to v0.4.8 has a NULL pointer dereference in new_aubio_filterbank via invalid n_filters.
https://github.com/aubio/aubio/blob/0.4.9/ChangeLog
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00067.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00063.html