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OpenSSL: Reject empty cipher list in tls_connection_set_cipher_list()

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Previously, this invalid call would have resulted in printing out a
string from uninitialized memory

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2017-02-11 15:56:47 +02:00
parent 3af37ece19
commit 063d28ec83
1 changed files with 4 additions and 0 deletions
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4
src/crypto/tls_openssl.c
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@ -4437,6 +4437,10 @@ int tls_connection_set_cipher_list(void *tls_ctx, struct tls_connection *conn,
c++; c++;
} }
if (!buf[0]) {
wpa_printf(MSG_DEBUG, "OpenSSL: No ciphers listed");
return -1;
}
wpa_printf(MSG_DEBUG, "OpenSSL: cipher suites: %s", buf + 1); wpa_printf(MSG_DEBUG, "OpenSSL: cipher suites: %s", buf + 1);