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Do not lookup zero-length session ID

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A condition was removed by commit 1053a6e2281d; presumably it was an
unintended change. Restore the previous behavior so the get_session_cb
won't be called with zero-length session ID.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/4236)
This commit is contained in:
Kazuki Yamaguchi 2017-03-31 22:52:56 +09:00 committed by Bernd Edlinger
parent 0139ce7c92
commit 0afca8113e
2 changed files with 22 additions and 9 deletions
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1
ssl/ssl_sess.c
View file

@ -491,6 +491,7 @@ int ssl_get_prev_session(SSL *s, CLIENTHELLO_MSG *hello, int *al)
goto err;
case TICKET_NONE:
case TICKET_EMPTY:
if (hello->session_id_len > 0)
try_session_cache = 1;
break;
case TICKET_NO_DECRYPT:

26
test/sslapitest.c
View file

@ -757,7 +757,7 @@ static int test_tlsext_status_type(void)
}
#endif
static int new_called = 0, remove_called = 0;
static int new_called, remove_called, get_called;
static int new_session_cb(SSL *ssl, SSL_SESSION *sess)
{
@ -780,6 +780,7 @@ static SSL_SESSION *get_sess_val = NULL;
static SSL_SESSION *get_session_cb(SSL *ssl, const unsigned char *id, int len,
int *copy)
{
get_called++;
*copy = 1;
return get_sess_val;
}
@ -969,7 +970,7 @@ static int execute_test_session(int maxprot, int use_int_cache,
SSL_CTX_set_max_proto_version(sctx, maxprot);
SSL_CTX_set_options(sctx, SSL_OP_NO_TICKET);
new_called = remove_called = 0;
new_called = remove_called = get_called = 0;
if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl1, &clientssl1,
NULL, NULL))
|| !TEST_true(create_ssl_connection(serverssl1, clientssl1,
@ -985,7 +986,9 @@ static int execute_test_session(int maxprot, int use_int_cache,
if (use_ext_cache) {
SSL_SESSION *tmp = sess2;
if (!TEST_int_eq(new_called, 1) || !TEST_int_eq(remove_called, 0))
if (!TEST_int_eq(new_called, 1)
|| !TEST_int_eq(remove_called, 0)
|| !TEST_int_eq(get_called, 0))
goto end;
/*
* Delete the session from the internal cache to force a lookup from
@ -1001,7 +1004,7 @@ static int execute_test_session(int maxprot, int use_int_cache,
sess2 = tmp;
}
new_called = remove_called = 0;
new_called = remove_called = get_called = 0;
get_sess_val = sess2;
if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl2,
&clientssl2, NULL, NULL))
@ -1011,11 +1014,20 @@ static int execute_test_session(int maxprot, int use_int_cache,
|| !TEST_true(SSL_session_reused(clientssl2)))
goto end;
if (use_ext_cache
&& (!TEST_int_eq(new_called, 0)
|| !TEST_int_eq(remove_called, 0)))
if (use_ext_cache) {
if (!TEST_int_eq(new_called, 0)
|| !TEST_int_eq(remove_called, 0))
goto end;
if (maxprot == TLS1_3_VERSION) {
if (!TEST_int_eq(get_called, 0))
goto end;
} else {
if (!TEST_int_eq(get_called, 1))
goto end;
}
}
testresult = 1;
end: