The flac_buffer_copy function in flac.c in libsndfile allows attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted audio file. References: https://blogs.gentoo.org/ago/2017/04/29/libsndfile-global-buffer-overflow-in-flac_buffer_copy-flac-c/
Created libsndfile tracking bugs for this issue: Affects: fedora-all [bug 1449521]