From: Matt Caswell <matt@openssl.org>
Date: Mon, 2 Jan 2017 11:40:16 +0000 (+0000)
Subject: Always use TLSv1.0 for record layer version in TLSv1.3
X-Git-Tag: OpenSSL_1_1_1-pre1~2707
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=d24c6a34ce4af11cd09aadd6a0f356cb2bd7fa4f;p=oweals%2Fopenssl.git

Always use TLSv1.0 for record layer version in TLSv1.3

TLSv1.3 freezes the record layer version and ensures that it is always set
to TLSv1.0. Some implementations check this.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
---

diff --git a/ssl/record/rec_layer_s3.c b/ssl/record/rec_layer_s3.c
index 3ffe29ad00..01e3db26cb 100644
--- a/ssl/record/rec_layer_s3.c
+++ b/ssl/record/rec_layer_s3.c
@@ -784,7 +784,7 @@ int do_ssl3_write(SSL *s, int type, const unsigned char *buf,
     /* Clear our SSL3_RECORD structures */
     memset(wr, 0, sizeof wr);
     for (j = 0; j < numpipes; j++) {
-        unsigned int version = s->version;
+        unsigned int version = SSL_IS_TLS13(s) ? TLS1_VERSION : s->version;
         unsigned char *compressdata = NULL;
         size_t maxcomplen;
         unsigned int rectype;