CVE-2018-16841

CVE-2018-16841 affects Samba AD DC KDC when PKINIT is used. The root cause is a double-free: talloc_free() is called twice on the same memory after an auth mismatch, causing the KDC to abort and thus a denial of service. Affected versions include Samba 4.3.0 and earlier and certain 4.7.x/4.8.x/4....