[Bug 1013798] Re: Blink SIP client segfaults with libgcrypt11 1.5.0-3ubuntu0.1

[Adam Stokes]

Contains updated patch to include the patch tagging guidelines (desc,
origin, bug)

** Patch removed: "libgcrypt11_1.5.0-3ubuntu1.1.raring.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/libgcrypt11/+bug/1013798/+attachment/3424781/+files/libgcrypt11_1.5.0-3ubuntu1.1.raring.debdiff

** Patch added: "libgcrypt11_1.5.0-3ubuntu1.1.raring.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/libgcrypt11/+bug/1013798/+attachment/3426854/+files/libgcrypt11_1.5.0-3ubuntu1.1.raring.debdiff

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Title:
  Blink SIP client segfaults with libgcrypt11 1.5.0-3ubuntu0.1

Status in “libgcrypt11” package in Ubuntu:
  In Progress
Status in “libgcrypt11” source package in Lucid:
  In Progress
Status in “libgcrypt11” source package in Oneiric:
  In Progress
Status in “libgcrypt11” source package in Precise:
  In Progress
Status in “libgcrypt11” source package in Quantal:
  In Progress
Status in “libgcrypt11” source package in Raring:
  In Progress

Bug description:
  [Impact]
  This regression was introduced from bug 423252

  [Test Case]
  Python 2.7.3 (default, Apr 20 2012, 22:44:07)
  [GCC 4.6.3] on linux2
  Type "help", "copyright", "credits" or "license" for more information.
  >>> from gnutls.crypto import X509Certificate, X509PrivateKey
  Segmentation fault (core dumped)

  [Regression Potentional]
  All known test cases pass so unless there is another corner case the regression potentional should be minimal.

  I'm not sure to which package I should report this, but I use the
  Blink SIP client (http://icanblink.com/) and noticed that it segfaults
  at startup if I have libgcrypt11 1.5.0-3ubuntu0.1 installed, but if I
  force the older version 1.5.0-3 Blink works ok.

  Blink is a Python app and I think I managed to find the line of Python
  code that causes the segfault. The line is 'from gnutls.crypto import
  X509Certificate, X509PrivateKey'. Here is what happens when I run it
  in the Python console:

  I'm using 12.04, but I originally noticed the issue when I had 11.10
  and the proposed updates enabled. One day there were some updates that
  broke Blink and going through the updates I discovered that reverting
  libgcrypt fixed it.

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