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authorMatt Caswell <matt@openssl.org>2017-04-25 12:42:17 +0100
committerMatt Caswell <matt@openssl.org>2017-05-03 14:37:42 +0100
commitf233a9d181b5cd150322e2e10348a4c1d96fc1f3 (patch)
treef24cd909e8ec46b7da94e83dbff225a44ddbbdfb /ssl/ssl_rsa.c
parentfb29c0f0704a488b9e282caf7643cde0119223b8 (diff)
Clarify serverinfo usage with Certificate messages
Ensure that serverinfo only gets added for the first Certificate in a list. Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/3298)
Diffstat (limited to 'ssl/ssl_rsa.c')
-rw-r--r--ssl/ssl_rsa.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/ssl/ssl_rsa.c b/ssl/ssl_rsa.c
index bf9678d118..f0a058e4bc 100644
--- a/ssl/ssl_rsa.c
+++ b/ssl/ssl_rsa.c
@@ -758,6 +758,10 @@ static int serverinfoex_srv_add_cb(SSL *s, unsigned int ext_type,
const unsigned char *serverinfo = NULL;
size_t serverinfo_length = 0;
+ /* We only support extensions for the first Certificate */
+ if ((context & SSL_EXT_TLS1_3_CERTIFICATE) != 0 && chainidx > 0)
+ return 0;
+
/* Is there serverinfo data for the chosen server cert? */
if ((ssl_get_server_cert_serverinfo(s, &serverinfo,
&serverinfo_length)) != 0) {