CVE-2021-28856
In Deark before v1.5.8, a specially crafted input file can cause a division by zero in (src/fmtutil.c) because of the value of pixelsize.
Date published : 2021-04-14
https://fatihhcelik.github.io/posts/Division-By-Zero-Deark/
https://github.com/jsummers/deark/commit/62acb7753b0e3c0d3ab3c15057b0a65222313334