  ft_var_readpackedpoints( FT_Stream  stream,
                           FT_UInt   *point_cnt )
  {
    FT_UShort *points;
    FT_Int     n;
    FT_Int     runcnt;
    FT_Int     i;
     FT_Int     j;
     FT_Int     first;
     FT_Memory  memory = stream->memory;
    FT_Error   error  = TT_Err_Ok;
 
     FT_UNUSED( error );
 

    *point_cnt = n = FT_GET_BYTE();
    if ( n == 0 )
      return ALL_POINTS;

    if ( n & GX_PT_POINTS_ARE_WORDS )
      n = FT_GET_BYTE() | ( ( n & GX_PT_POINT_RUN_COUNT_MASK ) << 8 );

    if ( FT_NEW_ARRAY( points, n ) )
      return NULL;

    i = 0;
    while ( i < n )
    {
      runcnt = FT_GET_BYTE();
      if ( runcnt & GX_PT_POINTS_ARE_WORDS )
      {
         runcnt = runcnt & GX_PT_POINT_RUN_COUNT_MASK;
         first  = points[i++] = FT_GET_USHORT();
 
        if ( runcnt < 1 || i + runcnt >= n )
           goto Exit;
 
         /* first point not included in runcount */
        for ( j = 0; j < runcnt; ++j )
          points[i++] = (FT_UShort)( first += FT_GET_USHORT() );
      }
      else
       {
         first = points[i++] = FT_GET_BYTE();
 
        if ( runcnt < 1 || i + runcnt >= n )
           goto Exit;
 
         for ( j = 0; j < runcnt; ++j )
          points[i++] = (FT_UShort)( first += FT_GET_BYTE() );
      }
    }

  Exit:
    return points;
  }

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.