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SSL: fixed segfault on renegotiation (ticket #1646). In e3ba4026c02d (1.15.4) nginx own renegotiation checks were disabled if SSL_OP_NO_RENEGOTIATION is available. But since SSL_OP_NO_RENEGOTIATION is only set on a connection, not in an SSL context, SSL_clear_option() removed it as long as a matching virtual server was found. This resulted in a segmentation fault similar to the one fixed in a6902a941279 (1.9.8), affecting nginx built with OpenSSL 1.1.0h or higher. To fix this, SSL_OP_NO_RENEGOTIATION is now explicitly set in ngx_http_ssl_servername() after adjusting options. Additionally, instead of c->ssl->renegotiation we now check c->ssl->handshaked, which seems to be a more correct flag to test, and will prevent the segmentation fault from happening even if SSL_OP_NO_RENEGOTIATION is not working.
author Maxim Dounin <mdounin@mdounin.ru>
date Tue, 02 Oct 2018 17:46:18 +0300
parents ed470a7bf7fd
children 67c68cd973b8
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<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
    body {
        width: 35em;
        margin: 0 auto;
        font-family: Tahoma, Verdana, Arial, sans-serif;
    }
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>