[Bug 1444656] [NEW] GnuTLS TLS 1.2 handshake failure

Launchpad Bug Tracker 1444656 at bugs.launchpad.net
Tue Mar 21 02:31:10 UTC 2017


You have been subscribed to a public bug by Seth Arnold (seth-arnold):

I'm experiencing the same issue as here:

http://comments.gmane.org/gmane.network.gnutls.general/3713


I came across a SSL handshake problem with gnutls-cli when connecting to 
some websites, see below. It is somehow specific to gnutls as 
openssl/Chrome/Firefox can connect fine. 

Is this is a bug in gnutls or do you have any ideas how to troubleshoot
it?

$ gnutls-cli --version
gnutls-cli (GnuTLS) 2.12.23
Packaged by Debian (2.12.23-12ubuntu2.1)

$ gnutls-cli www.openlearning.com
Resolving 'www.openlearning.com'...
Connecting to '119.9.9.205:443'...
*** Fatal error: A TLS fatal alert has been received.
*** Received alert [40]: Handshake failed
*** Handshake has failed
GnuTLS error: A TLS fatal alert has been received.

$ gnutls-cli sequencewiz.com
Resolving 'sequencewiz.com'...
Connecting to '50.112.144.117:443'...
*** Fatal error: A TLS packet with unexpected length was received.
*** Handshake has failed
GnuTLS error: A TLS packet with unexpected length was received.

Thank you,


Please back port the latest GnuTLS to Trusty as it is an LTS release and clearly GnuTLS 2.12 is an old branch.

I've also attached packet captures of this.

** Affects: gnutls26 (Ubuntu)
     Importance: Undecided
         Status: Invalid

** Affects: gnutls26 (Ubuntu Trusty)
     Importance: High
         Status: Triaged


** Tags: ssl tls
-- 
GnuTLS TLS 1.2 handshake failure
https://bugs.launchpad.net/bugs/1444656
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