epub2txt2 denial of service vulnerability

epub2txt is a simple command-line utility for extracting text from an EPUB document and optionally rearranging it to fit a specific number of columns of text to be displayed. epub2txt2 version v2.04 is vulnerable to a denial-of-service vulnerability stemming from an integer overflow error in the _parse_special_tag function of sxmlc.c. An attacker could exploit this vulnerability to cause a denial of service (DoS) via a crafted XML file.