KB4022726 breaks windows search query over OleDb

Question

We are using windows search to search for document on a remote share, after applying security update KB4022726 this functionality breaks.

Our implementation is using oledb connector for windows search in C#

Are there any workarounds besides uninstalling KB4022726?

Update: CVE-2017-8543 might be related.

Sample program - that failes efter install of KB4022726

using System;
using System.Data.OleDb;

namespace windowssearchtest
{
  class Program
  {
    static void Main(string[] args)
    {
      var computer = "searchserver";
      var filepath = @"documents";

      var query = $@"
Select System.Itemname
FROM {computer}.systemindex 
WHERE SCOPE='file:\\{computer}\{filepath}'";

      const string ConnectionString = "Provider=Search.CollatorDSO;Extended Properties=\"Application=Windows\"";

      OleDbDataReader myDataReader = null;
      OleDbConnection myOleDbConnection = new OleDbConnection(ConnectionString);
      OleDbCommand myOleDbCommand = new OleDbCommand(query, myOleDbConnection);
      myOleDbCommand.CommandTimeout = 180;

      try
      {
        myOleDbConnection.Open();
        myDataReader = myOleDbCommand.ExecuteReader();
        if (myDataReader != null && myDataReader.HasRows)
        {
          Console.WriteLine($"HasRows: {myDataReader.HasRows}");
          while (myDataReader.Read())
          {
          }
        }
      }
      catch (Exception e)
      {
        Console.WriteLine(e.ToString());
      }
    }
  }
}

Error:

System.Data.OleDb.OleDbException (0x80004005): Uspecificeret fejl
ved System.Data.OleDb.OleDbDataReader.ProcessResults(OleDbHResult hr) ved System.Data.OleDb.OleDbDataReader.GetRowHandles() ved System.Data.OleDb.OleDbDataReader.ReadRowset() ved System.Data.OleDb.OleDbDataReader.Read() ved windowssearchtest.Program.Main(String[] args) i C:\projects_local\windowssearchtest\windowssearchtest\Program.cs:linje 48

Update 2017-06-26 I have also reproduced this error on a local machine running win10 - 1703 Windows search still works, but will throw an error when you reach the end of the resultset, or if empty on .ExecuteReader()

We made a hack to work around this, i will not recommend this:

//pseudo code
while (Wrap(myDataReader))
<snip>
function Wrap(myDataReader)
{
  try
  {
    return myDataReader.Read();
  }
  catch (ex)
  {
   if(ex.HResult == -2147467259) return false; //0x80004005
   throw;
  }
}

Answer 1

It looks like the issue has been fixed in the latest Optional Updates from MS:

Win7, Server 2008: https://support.microsoft.com/en-us/help/4022168/windows-7-sp1-windows-server-2008-r2-sp1-update-kb4022168

Win 8.1, Server 2012: https://support.microsoft.com/en-us/help/4022720/windows-8-1-windows-server-2012-r2-update-kb4022720

Have installed these updates on my test servers (2008, 2012) and not getting that error now!