[Bug 1469653] Re: CVE-2014-0224 not fixed for python-openssl based servers

[Rob Meijer]

A stripped down version of the server code used. Using this code on a
fully patched Ubuntu 14.04 server, ssllabs will report:


"This server is vulnerable to the OpenSSL CCS vulnerability (CVE-2014-0224) and exploitable. Grade set to F."



** Attachment added: "Demo server code"
   https://bugs.launchpad.net/ubuntu/+source/pyopenssl/+bug/1469653/+attachment/4424979/+files/demo.py

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https://bugs.launchpad.net/bugs/1469653

Title:
  CVE-2014-0224 not fixed for python-openssl based servers

Status in pyopenssl package in Ubuntu:
  Incomplete

Bug description:
  When creating a minimal https based server in python using 'from
  OpenSSL import SSL' on a fully patched Ubuntu 14.04 system,  the
  OpenSSL bug as reported in CVE-2014-0224 seems to persist for that
  server. A C++ implementation with the same functionality on the same
  system does not show such issues so it would appear that its specific
  to python-openssl .

  The existence of this bug can be validated by running a simple python
  based https server that uses the Python OpenSSL module on a public IP
  adress and using the web form as provided on
  https://www.ssllabs.com/ssltest/

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