[Bug 965371] Re: HTTPS requests fail on sites which immediately close the connection if TLS 1.1 negotiation is attempted, on Ubuntu 12.04

[Aurélien Christman]

Don't now if it's related or not (but it seems).

Our 12.04.1 server up-to-date can't connect to graph.facebook.com :

$ curl -v https://graph.facebook.com/oauth/access_token
* About to connect() to graph.facebook.com port 443 (#0)
*   Trying 69.63.189.71... connected
* successfully set certificate verify locations:
*   CAfile: none
  CApath: /etc/ssl/certs
* SSLv3, TLS handshake, Client hello (1):
* error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol
* Closing connection #0
curl: (35) error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol

$ curl -v3 https://graph.facebook.com/oauth/access_token
* About to connect() to graph.facebook.com port 443 (#0)
*   Trying 69.63.189.71... connected
* successfully set certificate verify locations:
*   CAfile: none
  CApath: /etc/ssl/certs
* SSLv3, TLS handshake, Client hello (1):
* SSLv3, TLS alert, Server hello (2):
* error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number
* Closing connection #0
curl: (35) error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number

Both work fine under a 10.04.4 server.

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https://bugs.launchpad.net/bugs/965371

Title:
  HTTPS requests fail on sites which immediately close the connection if
  TLS 1.1 negotiation is attempted, on Ubuntu 12.04

Status in OpenSSL cryptography and SSL/TLS toolkit:
  Confirmed
Status in “openssl” package in Ubuntu:
  Fix Released
Status in “openssl” source package in Precise:
  Triaged
Status in “openssl” package in Debian:
  Fix Released

Bug description:
  This week, HTTPS connections from a Python script I wrote started
  giving me this error:

  urllib2.URLError: <urlopen error [Errno 8] _ssl.c:497: EOF occurred in
  violation of protocol>

  This used to work up until some three days ago and still works on
  other Ubuntu versions, but not in other Python versions on Precise. I
  was suspecting this was a bug in Python, but a guy on AskUbuntu (
  http://askubuntu.com/questions/116020/python-https-requests-urllib2
  -to-some-sites-fail-on-ubuntu-12-04-without-proxy/116059#116059 )
  found out this happens using the openssl command line tool too:

  $ openssl s_client -connect www.mediafire.com:443

  But succeeds if forcing TLS 1 with the -tls1 argument.

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