From 13e7cc155149cf6e7c3789955e2d48be0a42cc26 Mon Sep 17 00:00:00 2001
From: Victor Wagner <vitus@wagner.pp.ru>
Date: Mon, 20 Jun 2016 17:01:30 +0300
Subject: [PATCH] Check for CMS parsing error and don't pass None to
CMS_get0_type. Fixes #3
---
ctypescrypto/cms.py | 2 ++
1 file changed, 2 insertions(+)
diff --git a/ctypescrypto/cms.py b/ctypescrypto/cms.py
index 1e53387..685d52b 100644
--- a/ctypescrypto/cms.py
+++ b/ctypescrypto/cms.py
@@ -59,6 +59,8 @@ def CMS(data, format="PEM"):
ptr = libcrypto.PEM_read_bio_CMS(bio.bio, None, None, None)
else:
ptr = libcrypto.d2i_CMS_bio(bio.bio, None)
+ if ptr is None:
+ raise CMSError("Error parsing CMS data")
typeoid = Oid(libcrypto.OBJ_obj2nid(libcrypto.CMS_get0_type(ptr)))
if typeoid.shortname() == "pkcs7-signedData":
return SignedData(ptr)
--
2.39.5