pull up r24622 from trunk, except for the fix for CVE-2011-0283, which
only applies to krb5-1.9.

 ------------------------------------------------------------------------
 r24622 | tlyu | 2011-02-09 15:25:08 -0500 (Wed, 09 Feb 2011) | 10 lines

 ticket: 6860
 subject: KDC denial of service attacks [MITKRB5-SA-2011-002 CVE-2011-0281 CVE-2011-0282 CVE-2011-0283]
 tags: pullup
 target_version: 1.9.1

 [CVE-2011-0281 CVE-2011-0282] Fix some LDAP back end principal name
 handling that could cause the KDC to hang or crash.

 [CVE-2011-0283] Fix a KDC null pointer dereference introduced in krb5-1.9.

https://github.com/krb5/krb5/commit/58bbfc8681bf75f596878f909a20b773d77af845
Commit By: tlyu
Revision: 24628
Changed Files:
U   branches/krb5-1-7/src/plugins/kdb/ldap/libkdb_ldap/kdb_ldap.h
U   branches/krb5-1-7/src/plugins/kdb/ldap/libkdb_ldap/kdb_ldap_conn.c
U   branches/krb5-1-7/src/plugins/kdb/ldap/libkdb_ldap/ldap_misc.c
U   branches/krb5-1-7/src/plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c