An issue was discovered in uriparser before 0.9.0. UriQuery.c allows an integer overflow via a uriComposeQuery* or uriComposeQueryEx* function because of an unchecked multiplication.
https://lists.debian.org/debian-lts-announce/2018/11/msg00019.html
https://github.com/uriparser/uriparser/commit/f76275d4a91b28d687250525d3a0c5509bbd666f
https://github.com/uriparser/uriparser/blob/uriparser-0.9.0/ChangeLog