Fix failure interval of 0 in LDAP lockout code

pull up r25480 from trunk, minus a non-applying manpage patch

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 r25480 | ghudson | 2011-11-20 00:19:45 -0500 (Sun, 20 Nov 2011) | 13 lines

 ticket: 7021
 subject: Fix failure interval of 0 in LDAP lockout code
 target_version: 1.10
 tags: pullup

 A failure count interval of 0 caused krb5_ldap_lockout_check_policy to
 pass the lockout check (but didn't cause a reset of the failure count
 in krb5_ldap_lockout_audit).  It should be treated as forever, as in
 the DB2 back end.

 This bug is the previously unknown cause of the assertion failure
 fixed in CVE-2011-1528.

ticket: 7041
version_fixed: 1.8.6
status: resolved

git-svn-id: svn://anonsvn.mit.edu/krb5/branches/krb5-1-8@25514 dc483132-0cff-0310-8789-dd5450dbe970

diff --git a/src/plugins/kdb/ldap/libkdb_ldap/lockout.c b/src/plugins/kdb/ldap/libkdb_ldap/lockout.c
index 24b9493ba05f6435445f87c693726b0d37d108f5..9c038ac39c09cbd71157f2b0ad93211384a238ac 100644 (file)
--- a/src/plugins/kdb/ldap/libkdb_ldap/lockout.c
+++ b/src/plugins/kdb/ldap/libkdb_ldap/lockout.c
@@ -120,7 +120,7 @@ krb5_ldap_lockout_check_policy(krb5_context context,
     code = lookup_lockout_policy(context, entry, &max_fail,
                                  &failcnt_interval,
                                  &lockout_duration);
-    if (code != 0 || failcnt_interval == 0)
+    if (code != 0)
         return code;
 
     if (locked_check_p(context, stamp, max_fail, lockout_duration, entry))