There is an updated pull request by ndowens against master on the void-packages repository

https://github.com/ndowens/void-packages unoconv
https://github.com/void-linux/void-packages/pull/15880

unoconv: add CVE-2019-17400 patch
CVE: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17400
Patch is from : https://github.com/unoconv/unoconv/commit/acfac594e643f9c44f1c3b8d6d8957190a4d76f2

A patch file from https://github.com/void-linux/void-packages/pull/15880.patch is attached