static boolean parse_float( const char **pcur, float *val )
{
   const char *cur = *pcur;
   boolean integral_part = FALSE;
   boolean fractional_part = FALSE;

   if (*cur == '0' && *(cur + 1) == 'x') {
      union fi fi;
      fi.ui = strtoul(cur, NULL, 16);
      *val = fi.f;
      cur += 10;
      goto out;
   }

   *val = (float) atof( cur );
   if (*cur == '-' || *cur == '+')
      cur++;
   if (is_digit( cur )) {
      cur++;
      integral_part = TRUE;
      while (is_digit( cur ))
         cur++;
   }
   if (*cur == '.') {
      cur++;
      if (is_digit( cur )) {
         cur++;
         fractional_part = TRUE;
         while (is_digit( cur ))
            cur++;
      }
   }
   if (!integral_part && !fractional_part)
      return FALSE;
   if (uprcase( *cur ) == 'E') {
      cur++;
      if (*cur == '-' || *cur == '+')
         cur++;
      if (is_digit( cur )) {
         cur++;
         while (is_digit( cur ))
            cur++;
      }
      else
         return FALSE;
   }

out:
   *pcur = cur;
   return TRUE;
}

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.