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Merge remote-tracking branch 'origin/maint-0.2.2' into maint-0.2.3
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commit
a0e9dc9f55
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changes/bug7139
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changes/bug7139
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o Major bugfixes (security):
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- Disable TLS session tickets. OpenSSL's implementation were giving
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our TLS session keys the lifetime of our TLS context objects, when
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perfect forward secrecy would want us to discard anything that
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could decrypt a link connection as soon as the link connection was
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closed. Fixes bug 7139; bugfix on all versions of Tor linked
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against OpenSSL 1.0.0 or later. Found by "nextgens".
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@ -1195,6 +1195,14 @@ tor_tls_context_new(crypto_pk_t *identity, unsigned int key_lifetime,
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#ifdef SSL_OP_NO_TLSv1_1
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SSL_CTX_set_options(result->ctx, SSL_OP_NO_TLSv1_1);
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#endif
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/* Disable TLS tickets if they're supported. We never want to use them;
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* using them can make our perfect forward secrecy a little worse, *and*
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* create an opportunity to fingerprint us (since it's unusual to use them
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* with TLS sessions turned off).
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*/
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#ifdef SSL_OP_NO_TICKET
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SSL_CTX_set_options(result->ctx, SSL_OP_NO_TICKET);
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#endif
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if (
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#ifdef DISABLE_SSL3_HANDSHAKE
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