kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a double free that is reachable if an authenticated user can trigger an authorization-data handling failure. Incorrect data is copied from one ticket to another.Referenceshttps://web.mit.edu/kerberos/www/advisories/https://github.com/krb5/krb5/compare/krb5-1.21.1-final...krb5-1.21.2-finalhttps://github.com/krb5/krb5/commit/88a1701b423c13991a8064feeb26952d3641d840https://security.netapp.com/advisory/ntap-20230915-0014/https://security.netapp.com/advisory/ntap-20240201-0008/https://security.netapp.com/advisory/ntap-20240201-0005/
