https://fedorahosted.org/freeipa/ticket/6030
>From 4efedc5e674db92f9f7c160429df543422ed8afb Mon Sep 17 00:00:00 2001
From: Thierry Bordaz <tbor...@redhat.com>
Date: Wed, 13 Jul 2016 15:34:20 +0200
Subject: [PATCH] Ticket 6030 Bug in the ipapwd plugin

ipapwd_encrypt_encode_key allocates 'kset' on the heap but
with num_keys and keys not being initialized.
Then ipa_krb5_generate_key_data initializes them with the
generated keys.
If ipa_krb5_generate_key_data fails (here EINVAL meaning no
principal->realm.data), num_keys and keys are left uninitialized.
Upon failure, ipapwd_keyset_free is called to free 'kset'
that contains random num_keys and keys.

allocates kset with calloc so that kset->num_keys==0 and
kset->keys==NULL

https://fedorahosted.org/freeipa/ticket/6030
---
 daemons/ipa-slapi-plugins/ipa-pwd-extop/encoding.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/daemons/ipa-slapi-plugins/ipa-pwd-extop/encoding.c b/daemons/ipa-slapi-plugins/ipa-pwd-extop/encoding.c
index 5ca155d..46bf79a 100644
--- a/daemons/ipa-slapi-plugins/ipa-pwd-extop/encoding.c
+++ b/daemons/ipa-slapi-plugins/ipa-pwd-extop/encoding.c
@@ -148,7 +148,7 @@ Slapi_Value **ipapwd_encrypt_encode_key(struct ipapwd_krbcfg *krbcfg,
         pwd.length = strlen(data->password);
     }
 
-    kset = malloc(sizeof(struct ipapwd_keyset));
+    kset = calloc(sizeof(struct ipapwd_keyset));
     if (!kset) {
         LOG_OOM();
         goto enc_error;
-- 
2.5.0

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