[openssl-dev] [openssl.org #3911] 1.0.2c: some kind of regression - fails to connect to server where 1.0.2a works fine

Tomas Mraz via RT rt at openssl.org
Mon Jun 15 14:45:44 UTC 2015


On Po, 2015-06-15 at 14:22 +0000, Arkadiusz Miskiewicz via RT wrote:
> Hello.
> 
> I've just upgraded from 1.0.2a to 1.0.2c and now I no longer can connect from
> mysql client to my mysql server. Downgrading to 1.0.2a and the problem is gone.
> 

That's because mysql server hardcodes 512 bits DH parameters. That's
insecure and connect is prevented by the LOGJAM fix. You can configure
the server to not use DH ciphersuites as a workaround, or patch the
mysql server to use at least 1024 bits DH parameters.

-- 
Tomas Mraz
No matter how far down the wrong road you've gone, turn back.
                                              Turkish proverb
(You'll never know whether the road is wrong though.)





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