bark_noise_hybridmp in psy.c in Xiph.Org libvorbis 1.3.6 has a stack-based buffer over-read.
https://security.gentoo.org/glsa/202003-36
https://lists.debian.org/debian-lts-announce/2021/11/msg00023.html
https://lists.debian.org/debian-lts-announce/2019/11/msg00031.html