From: Nikos Mavrogiannopoulos <nmav@gnutls.org>
Date: Sat, 23 Sep 2017 08:59:58 +0000 (+0200)
Subject: ocsptool: check chain size on verification
X-Git-Tag: gnutls_3_6_1~35
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=f217b5e6f21056be4d7cbdf552c86d40007dc2b0;p=thirdparty%2Fgnutls.git

ocsptool: check chain size on verification

Signed-off-by: Nikos Mavrogiannopoulos <nmav@gnutls.org>
---

diff --git a/src/ocsptool.c b/src/ocsptool.c
index c0ae7ad6fe..1338d6122b 100644
--- a/src/ocsptool.c
+++ b/src/ocsptool.c
@@ -478,8 +478,12 @@ static void verify_response(gnutls_datum_t *nonce)
 
 	if (HAVE_OPT(LOAD_CHAIN)) {
 		chain_size = load_chain(chain);
+		if (chain_size < 1) {
+			fprintf(stderr, "Empty chain found; cannot verify\n");
+			app_exit(1);
+		}
 
-		if (chain_size <= 1)
+		if (chain_size == 1)
 			signer = chain[0];
 		else
 			signer = chain[1];