CVE-2014-5354

plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c en MIT Kerberos 5 (también conocido como krb5) 1.12.x y 1.13.x anterior a 1.13.1, cuando el KDC utiliza LDAP, permite a usuarios remotos autenticados causar una denegación de servicio (referencia a puntero nulo y caída del demonio) mediante la creación de una entrada de la base de datos para un principal sin clave, tal y como fur demostrado por un comando kadmin 'add_principal -nokey' o 'purgekeys -all'.

It was discovered that Kerberos incorrectly sent old keys in response to a -randkey -keepold request. An authenticated remote attacker could use this issue to forge tickets by leveraging administrative access. This issue only affected Ubuntu 10.04 LTS, Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. It was discovered that the libgssapi_krb5 library incorrectly processed security context handles. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.