The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before 1.6.4 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer.
AV:N/AC:L/Au:N/C:C/I:C/A:C
This vulnerability has a 8.90% probability of being exploited in the next 30 days, ranking higher than 95% of all scored CVEs.