CVE-2018-10548: NULL Pointer Dereference

An issue was discovered in PHP before 5.6.36, 7.0.x before 7.0.30, 7.1.x before 7.1.17, and 7.2.x before 7.2.5. ext/ldap/ldap.c allows remote LDAP servers to cause a denial of service NULL pointer dereference and application crash because of mishandling of the ldapgetdn return value...