Libsndfile <=1.2.2 contains a memory leak vulnerability in the mpeg_l3_encoder_init() function within the mpeg_l3_encode.c file.
https://github.com/libsndfile/libsndfile/issues/1089
https://gist.github.com/Sisyphus-wang/f9e6e017b7d478bebee6e8187672abc8