Buffer overflow in JustSystems Hanako 2004 through 2006, Hanako viewer 1.x, Ichitaro 2004, Ichitaro 2005, Ichitaro Lite2, Ichitaro viewer 4.x, and Sanshiro 2005 allows remote attackers to execute arbitrary code via the (1) Keyword and (2) Title fields, related to string length fields.
http://www.vupen.com/english/advisories/2006/4857
http://www.securityfocus.com/bid/21445
http://www.lac.co.jp/business/sns/intelligence/SNSadvisory_e/92_e.html
http://www.justsystem.co.jp/info/pd6005.html
http://securitytracker.com/id?1017336