The snprintf function in the db library 1.85.4 ignores the size parameter, which could allow attackers to exploit buffer overflows that would be prevented by a properly implemented snprintf.
http://www.redhat.com/support/errata/rh42-errata-general.html#db
http://www.iss.net/security_center/static/7244.php
http://marc.info/?l=bugtraq&m=87602661419259&w=2
http://lists.openresources.com/Debian/debian-bugs-closed/msg00581.html