There is a heap-based buffer over-read at wav.c in wav_write_header in libsndfile 1.0.28 that will cause a denial of service.

References

• advisory https://lists.debian.org/debian-lts-announce/2019/01/msg00008.html
• report https://bugzilla.redhat.com/show_bug.cgi?id=1643812
• web https://lists.debian.org/debian-lts-announce/2020/10/msg00030.html
• web https://usn.ubuntu.com/4013-1/