Re: Query: Disabling SSLv3

2014-11-06 Thread Richard Könning
On 05.11.2014 17:00, Viktor Dukhovni wrote: On Wed, Nov 05, 2014 at 12:18:05PM +, Philip Bellino wrote: Jeffrey, May I ask why you included no-ssl2 as an option to config? Is only adding no-ssl3 not sufficient enough to fully disable SSLv3? No. If you leave SSLv2 enabled, and disable

Re: Query: Disabling SSLv3

2014-11-06 Thread Viktor Dukhovni
On Thu, Nov 06, 2014 at 03:31:10PM +0100, Richard K?nning wrote: Well, the ClientHello message only allows to advertise the highest protocol version the client speaks, it is expected that the client speaks also all lower versions. The client uses the lowest supported version at the *record

Re: Query: Disabling SSLv3

2014-11-06 Thread Richard Könning
On 06.11.2014 16:35, Viktor Dukhovni wrote: On Thu, Nov 06, 2014 at 03:31:10PM +0100, Richard K?nning wrote: Well, the ClientHello message only allows to advertise the highest protocol version the client speaks, it is expected that the client speaks also all lower versions. The client uses

RE: Query: Disabling SSLv3

2014-11-05 Thread Philip Bellino
: Wednesday, November 05, 2014 12:45 AM To: OpenSSL Users List Subject: Re: Query: Disabling SSLv3 We are upgrading to OpenSSL 0.9.8zc on FreeBSD based OS to mitigate POODLE risk. Could you please answer our following query, Definition of a function ssl23_get_client_method() in C file 'openssl-0.9.8zc

Re: Query: Disabling SSLv3

2014-11-05 Thread Viktor Dukhovni
On Wed, Nov 05, 2014 at 12:18:05PM +, Philip Bellino wrote: Jeffrey, May I ask why you included no-ssl2 as an option to config? Is only adding no-ssl3 not sufficient enough to fully disable SSLv3? No. If you leave SSLv2 enabled, and disable SSLv3, then in many cases you always get SSLv2!

Re: Query: Disabling SSLv3

2014-11-04 Thread Jeffrey Walton
We are upgrading to OpenSSL 0.9.8zc on FreeBSD based OS to mitigate POODLE risk. Could you please answer our following query, Definition of a function ssl23_get_client_method() in C file 'openssl-0.9.8zc/ssl/s23_clnt.c' shows, #ifndef OPENSSL_NO_SSL3 if (ver == SSL3_VERSION)