File bnc#897874-CVE-2014-5351.diff of Package krb5

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File bnc#897874-CVE-2014-5351.diff of Package krb5 (Revision cfb99650b7327b68a040ff31512030e8)

Currently displaying revision cfb99650b7327b68a040ff31512030e8 , Show latest

diff --git a/src/lib/kadm5/srv/svr_principal.c b/src/lib/kadm5/srv/svr_principal.c
index 5d358bd..d4e74cc 100644
--- a/src/lib/kadm5/srv/svr_principal.c
+++ b/src/lib/kadm5/srv/svr_principal.c
@@ -344,6 +344,20 @@ check_1_6_dummy(kadm5_principal_ent_t entry, long mask,
     *passptr = NULL;
 }
 
+/* Return the number of keys with the newest kvno.  Assumes that all key data
+ * with the newest kvno are at the front of the key data array. */
+static int
+count_new_keys(int n_key_data, krb5_key_data *key_data)
+{
+    int n;
+
+    for (n = 1; n < n_key_data; n++) {
+        if (key_data[n - 1].key_data_kvno != key_data[n].key_data_kvno)
+            return n;
+    }
+    return n_key_data;
+}
+
 kadm5_ret_t
 kadm5_create_principal(void *server_handle,
                        kadm5_principal_ent_t entry, long mask,
@@ -1593,7 +1607,7 @@ kadm5_randkey_principal_3(void *server_handle,
     osa_princ_ent_rec           adb;
     krb5_int32                  now;
     kadm5_policy_ent_rec        pol;
-    int                         ret, last_pwd;
+    int                         ret, last_pwd, n_new_keys;
     krb5_boolean                have_pol = FALSE;
     kadm5_server_handle_t       handle = server_handle;
     krb5_keyblock               *act_mkey;
@@ -1686,8 +1700,9 @@ kadm5_randkey_principal_3(void *server_handle,
     kdb->fail_auth_count = 0;
 
     if (keyblocks) {
-        ret = decrypt_key_data(handle->context,
-                               kdb->n_key_data, kdb->key_data,
+        /* Return only the new keys added by krb5_dbe_crk. */
+        n_new_keys = count_new_keys(kdb->n_key_data, kdb->key_data);
+        ret = decrypt_key_data(handle->context, n_new_keys, kdb->key_data,
                                keyblocks, n_keys);
         if (ret)
             goto done;
-- 
1.8.5.2

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File bnc#897874-CVE-2014-5351.diff of Package krb5 (Revision cfb99650b7327b68a040ff31512030e8)

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