--- net-snmp-5.2.3.orig/snmplib/container_binary_array.c        2006-12-20 16:23:12.000000000 +0100
+++ net-snmp-5.2.3/snmplib/container_binary_array.c     2006-12-20 16:25:22.000000000 +0100
@@ -338,6 +338,16 @@
     void           *new_data;   /* Used for * a) extending the data table
                                  * * b) the next entry to use */

+    /*
+     * check for duplicates
+     */
+
+    new_data = netsnmp_binary_array_get(c, entry, 1);
+    if (NULL != new_data) {
+       DEBUGMSGTL(("container","not inserting duplicate key\n"));
+       return -1;
+    }
+
     if (t->max_size <= t->count) {
         /*
          * Table is full, so extend it to double the size