  FT_New_Memory_Face( FT_Library      library,
                      const FT_Byte*  file_base,
                      FT_Long         file_size,
                      FT_Long         face_index,
                      FT_Face        *aface )
  {
    FT_Open_Args  args;


    /* test for valid `library' and `face' delayed to FT_Open_Face() */
    if ( !file_base )
      return FT_Err_Invalid_Argument;

    args.flags       = FT_OPEN_MEMORY;
    args.memory_base = file_base;
    args.memory_size = file_size;
    args.stream      = NULL;

    return FT_Open_Face( library, &args, face_index, aface );
  }

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.