static inline unsigned short ReadProfileMSBShort(unsigned char **p,
  size_t *length)
{
  unsigned short
    value;

  if (*length < 2)
    return(0);
  value=ReadProfileShort(MSBEndian,*p);
  (*length)-=2;
  *p+=2;
  return(value);
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.