Hi,

The BalaBit team has worked on this issue, but IIRC they upgraded the openssl library in the installation package.

Is that an option for you? Certainly syslog-ng could disable certain protocols using options, but work has not been done.

It wouldn't be too difficult though, as we already disable SSLv2 (without options). Can you perhaps make a stab at contributing this as a patch?

This is the line that disables SSLv2:

lib/tlscontext.c:334: SSL_CTX_set_options(self->ssl_ctx, SSL_OP_NO_SSLv2);

On Wed, Oct 29, 2014 at 2:16 AM, bluebenben <bluebenben@163.com> wrote:

Hi guys

In my project I am using syslog-ng as syslog client and send log via TLS.
We all know that recently there is one new security flaw which is Poodle(CVE-2014-3566 - SSLv3 Fallback Vulnerability)
This requires disabling SSLv3
I have checked admin guide of syslog-ng 3.3.2 but I am able to find the option
Could you please let me know the way?

Alternatively I think I may achieve the object by disable SSLv3 ciphers used by syslog-ng client
original ciphers used by us is
ALL:!SSLv2:!MEDIUM:!LOW:!EXP:!ADH:!ECDH:!PSK:!MD5:@STRENGTH
I may change it to
ALL:!SSLv3:!SSLv2:!MEDIUM:!LOW:!EXP:!ADH:!ECDH:!PSK:!MD5:@STRENGTH
Bug this will make syslog-ng only supports TLS1.2 and cause negative impact to interoperability

Thanks

Jason

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Bazsi