Liblouis 3.5.0 has a Segmentation fault in lou_logPrint in logging.c.
https://usn.ubuntu.com/3669-1/
https://github.com/liblouis/liblouis/issues/582
https://github.com/Edward-L/fuzzing-pocs/tree/master/liblouis
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00038.html