Read access violation in the isiin_keyword function in isiin.c in libbibutils.a in bibutils through 6.2 allows remote attackers to cause a denial of service (application crash), as demonstrated by isi2xml.
https://docs.google.com/document/d/1BuCxbXaGL_3DyaWF8sGnMAWolmYQneRrxHt4mNPkBE4/edit