ekg before 1:1.7~rc2-1etch1 on Debian GNU/Linux Etch allows remote attackers to cause a denial of service (NULL pointer dereference) via a vector related to the token OCR functionality.
https://exchange.xforce.ibmcloud.com/vulnerabilities/35135
https://euvd.enisa.europa.eu/vulnerability/EUVD-2007-1658
http://www.securityfocus.com/bid/24600