Buffer overflow in Microsoft Step-by-Step Interactive Training (orun32.exe) allows remote attackers to execute arbitrary code via a bookmark link file (.cbo, cbl, or .cbm extension) with a long User field.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1224
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-031
http://www.securityfocus.com/bid/13944
http://securitytracker.com/id?1014194
http://secunia.com/advisories/15669/
http://idefense.com/application/poi/display?id=262&type=vulnerabilities&flashstatus=true