An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers to cause a denial of service (DoS) via crafted .pdf file to FoFiType1C::cvtGlyph function.
https://lists.debian.org/debian-lts-announce/2023/08/msg00017.html
https://gitlab.freedesktop.org/poppler/poppler/-/issues/1013