CVE-2015-5370: s4:librpc/rpc: avoid dereferencing sec->auth_info in dcerpc_request_pr...

BUG: https://bugzilla.samba.org/show_bug.cgi?id=11344

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>

diff --git a/source4/librpc/rpc/dcerpc.c b/source4/librpc/rpc/dcerpc.c
index 01fc8e5fb203d5100a38fb3d0c084ac2394e19dc..0a37509bd28abb192a336d8b7260de2c814b0162 100644 (file)
--- a/source4/librpc/rpc/dcerpc.c
+++ b/source4/librpc/rpc/dcerpc.c
@@ -1639,11 +1639,7 @@ static NTSTATUS dcerpc_request_prepare_vt(struct rpc_request *req)
        struct ndr_push *ndr = NULL;
        enum ndr_err_code ndr_err;
 
-       if (sec->auth_info == NULL) {
-               return NT_STATUS_OK;
-       }
-
-       if (sec->auth_info->auth_level < DCERPC_AUTH_LEVEL_INTEGRITY) {
+       if (sec->auth_level < DCERPC_AUTH_LEVEL_INTEGRITY) {
                return NT_STATUS_OK;
        }