This indicates an attempt to exploit a stack based buffer overflow vulnerability in the "AskJeevesToolBar.SettingsPlugin.1" ActiveX control in askBar.dll, part of IAC Search&Media ask.com's Ask Toolbar. The vulnerability allows remote attackers to execute arbitrary code via a long "ShortFormat" property value.
Ask Jeeves, Ask.com Toolbar 184.108.40.206 and earlier.
System compromise: remote code execution.
Currently we are not aware of any vendor supplied patches for this issue.