The remote host is missing an update to krb5 announced via advisory MDKSA-2007:174-1.
A stack buffer overflow vulnerability was discovered in the RPC library used by Kerberos' kadmind program by Tenable Network Security. A remote unauthenticated user who could access kadmind would be able to trigger the flaw and cause it to crash (CVE-2007-3999). This issue is only applicable to Kerberos 1.4 and higher.
Garrett Wollman found an uninitialized pointer vulnerability in kadmind which a remote unauthenticated attacker able to access kadmind could exploit to cause kadmind to crash (CVE-2007-4000). This issue is only applicable to Kerberos 1.5 and higher.
Update:
The MIT Kerberos Team found a problem with the originally published patch for CVE-2007-3999. A remote unauthenticated attacker able to access kadmind could trigger this flaw and cause kadmind to crash.
Updated packages have been patched to prevent these issues.
Affected: 2007.0, 2007.1, Corporate 4.0
Solution: To upgrade automatically use MandrakeUpdate or urpmi. The verification of md5 checksums and GPG signatures is performed automatically for you.