From 69d643535837bc23d8f7274ce476cf803b45969b Mon Sep 17 00:00:00 2001
From: Stefan Metzmacher <metze@samba.org>
Date: Tue, 17 Aug 2004 10:04:25 +0000
Subject: r1851: if we try to peek a subtag, check if the parent tag has
 remaining data

metze
(This used to be commit 01626ed381bdc9cab3e94e80220c916bb61acf30)
---
 source4/libcli/util/asn1.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/source4/libcli/util/asn1.c b/source4/libcli/util/asn1.c
index 6dc459d59d..e7c38b2803 100644
--- a/source4/libcli/util/asn1.c
+++ b/source4/libcli/util/asn1.c
@@ -264,6 +264,10 @@ BOOL asn1_peek_tag(ASN1_DATA *data, uint8_t tag)
 {
 	uint8_t b;
 
+	if (asn1_tag_remaining(data) <= 0) {
+		return False;
+	}
+
 	if (!asn1_peek(data, &b, sizeof(b)))
 		return False;
 
-- 
cgit