Two errors in the "asn1_find_node()" function (lib/parser_aux.c) within GnuTLS libtasn1 version 4.10 can be exploited to cause a stacked-based buffer overflow by tricking a user into processing a specially crafted assignments file via the e.g. asn1Coding utility.
https://security.gentoo.org/glsa/201710-11
https://secuniaresearch.flexerasoftware.com/secunia_research/2017-11/
https://secuniaresearch.flexerasoftware.com/advisories/76125/
http://www.securitytracker.com/id/1038619
http://www.securityfocus.com/bid/98641