int Exif2tm(struct tm * timeptr, char * ExifTime)
{
 int a;

    timeptr->tm_wday = -1;

    a = sscanf(ExifTime, "%d%*c%d%*c%d%*c%d:%d:%d",
 &timeptr->tm_year, &timeptr->tm_mon, &timeptr->tm_mday,
 &timeptr->tm_hour, &timeptr->tm_min, &timeptr->tm_sec);


 if (a == 6){
        timeptr->tm_isdst = -1;
        timeptr->tm_mon -= 1; // Adjust for unix zero-based months
        timeptr->tm_year -= 1900; // Adjust for year starting at 1900
 return TRUE; // worked.
 }

 return FALSE; // Wasn't in Exif date format.
}

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.