CVE-2018-11504
The islist function in markdown.c in libmarkdown.a in DISCOUNT 2.2.3a allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted file, as demonstrated by mkd2html.
Date published : 2018-05-26
https://www.debian.org/security/2018/dsa-4293
https://github.com/Orc/discount/issues/189#issuecomment-392247798