Bug#846082: cyrus-imapd: TLS connections fail with 2.5.10-2 (new config option?)

Ondřej Surý ondrej at sury.org
Wed Dec 7 10:31:39 UTC 2016


Control: clone -1 -2
Control: retitle -2 Notify user about tls_ciphers change in imapd.conf
Control: severity -2 normal

Thanks for the testing - I am going to remove custom tls_ciphers from
the default imapd.conf.

It also probably needs a prompt or something to notify the user that he
needs to modify the tls_versions and tls_ciphers

Cheers,
-- 
Ondřej Surý <ondrej at sury.org>
Knot DNS (https://www.knot-dns.cz/) – a high-performance DNS server
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On Sat, Dec 3, 2016, at 16:24, Thorsten Zachmann wrote:
> Hello,
> 
> I see the same problem after upgrading cyrus.
> 
> The option TLSv1.2:+TLSv1:+HIGH:!aNULL:@STRENGTH works but it is still
> not 
> possible to connect with a TLSv1 only client like the BB10 Hup.
> 
> I used the following configs
> tls_versions: tls1_2 tls1_0
> tls_ciphers: TLSv1.2:+TLSv1:+HIGH:!aNULL:@STRENGTH
> 
> Dec  3 16:23:01 host cyrus/imaps[13160]: no shared cipher in SSL_accept()
> -> 
> fail
> Dec  3 16:23:01 host cyrus/imaps[13160]: imaps TLS negotiation
> failed:host. 
> [1.1.1.1]
> 
> Thorsten
> 
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