CVE:CVE-2014-5353
CNNVD:CNNVD-201412-362
MIT Kerberos 5（又名krb5）是美国麻省理工学院（MIT）开发的一套网络认证协议，它采用客户端/服务器结构，并且客户端和服务器端均可对对方进行身份认证（即双重验证），可防止窃听、防止replay攻击等。
MIT Kerberos 5 1.13.1之前版本的plugins/kdb/ldap/libkdb_ldap/ldap_pwd_policy.c文件中的‘krb5_ldap_get_password_policy_from_dn’函数存在安全漏洞。当KDC数据库使用LDAP时，远程攻击者可借助无结果的LDAP查询利用该漏洞造成拒绝服务（守护进程崩溃）。
solution:Upgrade mit kerberos_5 to a higher version than 1.13.1,and avoid the version (,1.13.1); Upgrade redhat enterprise_linux_desktop to a higher version than 6.0,and avoid the version 6.0; Upgrade redhat enterprise_linux_eus to a higher version than 6.6,7.3,7.4,7.5,7.6,7.7,and avoid the version 6.6,7.3,7.4,7.5,7.6,7.7; Upgrade redhat enterprise_linux_server to a higher version than 6.0,7.0,and avoid the version 6.0,7.0; Upgrade redhat enterprise_linux_server_aus to a higher version than 6.6,7.3,7.4,7.6,7.7,and avoid the version 6.6,7.3,7.4,7.6,7.7; Upgrade redhat enterprise_linux_server_tus to a higher version than 6.6,7.3,7.6,7.7,and avoid the version 6.6,7.3,7.6,7.7; Upgrade redhat enterprise_linux_workstation to a higher version than 6.0,and avoid the version 6.0; Upgrade fedoraproject fedora to a higher version than 22,and avoid the version 22; Upgrade debian debian_linux to a higher version than 7.0,and avoid the version 7.0; Upgrade canonical ubuntu_linux to a higher version than 10.04,12.04,14.04,14.10,and avoid the version 10.04,12.04,14.04,14.10; Upgrade oracle solaris to a higher version than 10,11.2,and avoid the version 10,11.2; Upgrade opensuse opensuse to a higher version than 13.1,13.2,and avoid the version 13.1,13.2