DEBIAN-CVE-2003-0139

Certain weaknesses in the implementation of version 4 of the Kerberos protocol krb4 in the krb5 distribution, when triple-DES keys are used to key krb4 services, allow an attacker to create krb4 tickets for unauthorized principals using a cut-and-paste attack and "ticket splicing."...

DEBIAN-CVE-2003-0138

Version 4 of the Kerberos protocol krb4, as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack...