=== modified file 'ChangeLog'
--- ChangeLog	2013-06-26 14:46:02 +0000
+++ ChangeLog	2013-07-09 11:35:31 +0000
@@ -15,6 +15,7 @@
     (Bug# 16176981/67793)
   * Conversion of Time field data to Timestamp type may produce incorrect result
     (Bug# 17016839/69545)
+  * MS Access crashed when sorting a column (Bug# 17071780/69550)
 
 
 ----

=== modified file 'driver/results.c'
--- driver/results.c	2013-06-26 14:46:02 +0000
+++ driver/results.c	2013-07-09 11:29:17 +0000
@@ -1195,8 +1195,12 @@
 
     /* catalog functions with "fake" results won't have lengths */
     length= irrec->row.datalen;
-    if (!length && stmt->current_values[ColumnNumber])
+    if (!length && 
+        !is_null(stmt, ColumnNumber, stmt->current_values[ColumnNumber]))
+    {
+      /* Measure the length only when we are sure the column is not NULL */
       length= strlen(stmt->current_values[ColumnNumber]);
+    }
 
     if (!stmt->dbc->ds->dont_use_set_locale)
       setlocale(LC_NUMERIC, "C");