local void touch(char *path, time_t t)
{
    struct timeval times[2];

    times[0].tv_sec = t;
    times[0].tv_usec = 0;
    times[1].tv_sec = t;
    times[1].tv_usec = 0;
    (void)utimes(path, times);
}

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.