CVE:CVE-2001-1436
CNNVD:CNNVD-200101-126
Dallas Semiconductor iButton DS1991版本在给定不正确密码时返回可预言的值，带有物理访问的用户更容易进行对设备密码进行目录攻击。
solution:Upgrade dallas_semiconductor ibutton to a higher version than ds1991,and avoid the version ds1991