The following clause in function outputResponse (zoo-kernel/service_internal.c, rev. 459, line 1998 ) causes unexpected behavior:

    if(lenv!=NULL){
      tmp0=(char*)malloc((strlen(lenv->value)+strlen(_("Unable to run the Service. The message returned back by the Service was the following: "+1)))*sizeof(char));
      sprintf(tmp0,_("Unable to run the Service. The message returned back by the Service was the following: %s"),lenv->value);
    }

The const char* argument to strlen is incremented by +1, whereas the intention is to allocate an additional byte. Line 1999 should presumably be written

     tmp0=(char*)malloc((strlen(lenv->value)+strlen(_("Unable to run the Service. The message returned back by the Service was the following: "))+1)*sizeof(char));