 char *suhosin_decrypt_single_cookie(char *name, int name_len, char *value, int value_len, char *key, char **where TSRMLS_DC)
 {
     int o_name_len = name_len;
	char *buf, *buf2, *d, *d_url;
 	int l;
 
	buf = estrndup(name, name_len);
		
 	name_len = php_url_decode(buf, name_len);
	normalize_varname(buf);
	name_len = strlen(buf);
 	
 	if (SUHOSIN_G(cookie_plainlist)) {
 		if (zend_hash_exists(SUHOSIN_G(cookie_plainlist), buf, name_len+1)) {
 decrypt_return_plain:
			efree(buf);
             memcpy(*where, name, o_name_len);
             *where += o_name_len;
             **where = '='; *where +=1;
	        memcpy(*where, value, value_len);
	        *where += value_len;
			return *where;
		}
	} else if (SUHOSIN_G(cookie_cryptlist)) {
		if (!zend_hash_exists(SUHOSIN_G(cookie_cryptlist), buf, name_len+1)) {
			goto decrypt_return_plain;
		}
 	}
 	
 	
	buf2 = estrndup(value, value_len);
 	
 	value_len = php_url_decode(buf2, value_len);
 	
	d = suhosin_decrypt_string(buf2, value_len, buf, name_len, key, &l, SUHOSIN_G(cookie_checkraddr) TSRMLS_CC);
    if (d == NULL) {
        goto skip_cookie;
    }
	d_url = php_url_encode(d, l, &l);
	efree(d);
    memcpy(*where, name, o_name_len);
    *where += o_name_len;
    **where = '=';*where += 1;
	memcpy(*where, d_url, l);
 	*where += l;
 	efree(d_url);
 skip_cookie:
	efree(buf);
	efree(buf2);
 	return *where;
 }

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.