From: Nikos Mavrogiannopoulos <nmav@redhat.com>
Date: Mon, 29 Feb 2016 08:57:40 +0000 (+0100)
Subject: ecc: optimized extension parsing
X-Git-Tag: gnutls_3_5_0~290
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c9a6fd2bf2c8e0b5efbc851460f7917be511d114;p=thirdparty%2Fgnutls.git

ecc: optimized extension parsing
---

diff --git a/lib/ext/ecc.c b/lib/ext/ecc.c
index d8cfbeb108..ec9fc25bfb 100644
--- a/lib/ext/ecc.c
+++ b/lib/ext/ecc.c
@@ -220,11 +220,18 @@ _gnutls_supported_ecc_pf_recv_params(gnutls_session_t session,
 			    (GNUTLS_E_RECEIVED_ILLEGAL_EXTENSION);
 
 		len = data[0];
+		if (len < 1)
+			return
+			    gnutls_assert_val
+			    (GNUTLS_E_RECEIVED_ILLEGAL_EXTENSION);
+
 		DECR_LEN(data_size, len + 1);
 
 		for (i = 1; i <= len; i++)
-			if (data[i] == 0)	/* uncompressed */
+			if (data[i] == 0) {	/* uncompressed */
 				uncompressed = 1;
+				break;
+			}
 
 		if (uncompressed == 0)
 			return