An error in the "read_metadata_vorbiscomment_()" function (src/libFLAC/stream_decoder.c) in FLAC version 1.3.2 can be exploited to cause a memory leak via a specially crafted FLAC file.
https://secuniaresearch.flexerasoftware.com/secunia_research/2017-7/
https://secuniaresearch.flexerasoftware.com/advisories/82639/
https://lists.debian.org/debian-lts-announce/2021/01/msg00001.html
https://git.xiph.org/?p=flac.git%3Ba=commit%3Bh=4f47b63e9c971e6391590caf00a0f2a5ed612e67