In ImageMagick 7.0.8-43 Q16, there is a heap-based buffer over-read in the function WritePNGImage of coders/png.c, related to Magick_png_write_raw_profile and LocaleNCompare.
https://www.debian.org/security/2020/dsa-4712
https://usn.ubuntu.com/4549-1/
https://lists.debian.org/debian-lts-announce/2020/08/msg00030.html
https://lists.debian.org/debian-lts-announce/2019/12/msg00033.html
https://github.com/ImageMagick/ImageMagick/issues/1561
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00006.html