From cae5c71f90cc5b364efe14040923fd5aa3b5dd90 Mon Sep 17 00:00:00 2001
From: Jakub Jelen <jjelen@redhat.com>
Date: Tue, 6 Apr 2021 12:45:24 +0200
Subject: [PATCH] oberthur: Handle 1B OIDs

Thanks oss-fuzz

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32807
---
 src/libopensc/pkcs15-oberthur.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libopensc/pkcs15-oberthur.c b/src/libopensc/pkcs15-oberthur.c
index 0ddfc3f617..6487656b97 100644
--- a/src/libopensc/pkcs15-oberthur.c
+++ b/src/libopensc/pkcs15-oberthur.c
@@ -973,7 +973,7 @@ sc_pkcs15emu_oberthur_add_data(struct sc_pkcs15_card *p15card,
 		free(info_blob);
 		LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Invalid length of 'oid' received");
 	}
-	if (oid_len)   {
+	if (oid_len > 2) {
 		oid = info_blob + offs + 2;
 		if (*oid != 0x06 || (*(oid + 1) != oid_len - 2)) {
 			free(info_blob);