[Bug 972783] Re: Crashes with segmentation fault operating asn1_meth_table

[Adrien Nader]

I've tried to reproduce this crash but I'm not sure how to do it. The
various traces attached are informative but without a way to test and
experiment, it's difficult to tell the consequences apart from their
causes since there seems to be some memory corruption going on. I'm
going to mark this as Incomplete to reflect the need for a reproducer.

** Changed in: openssl (Ubuntu)
       Status: Confirmed => Incomplete

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to openssl in Ubuntu.
https://bugs.launchpad.net/bugs/972783

Title:
  Crashes with segmentation fault operating asn1_meth_table

Status in openssl package in Ubuntu:
  Incomplete

Bug description:
  Trying to update Server Access Certificate with DigiDoc client for
  Estonian ID cards crashes implicating an OpenSSL problem.

  The problem has been there from OpenSSL 1.0.0, but does not happen
  using OpenSSL 0.9.8.

  Debugging with Valgrind gives variety of:

  Invalid free() / delete / delete[] / realloc()
  Invalid write of size n
  Invalid read of size n

  The context is:

  ==5779==    at 0x402B06C: free (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
  ==5779==    by 0x6A818C9: CRYPTO_free (mem.c:393)
  ==5779==    by 0x6AEB82A: engine_free_util (eng_lib.c:136)
  ==5779==    by 0x6AEC798: engine_unlocked_finish (eng_init.c:112)
  ==5779==    by 0x6AED607: engine_table_register (eng_table.c:178)
  ==5779==    by 0x6AEFC7A: ENGINE_set_default_pkey_asn1_meths (tb_asnmth.c:106)
  ==5779==    by 0x6AEE3B7: ENGINE_set_default (eng_fat.c:96)

  I'm currently testing it on Ubuntu 12.04 beta 2 with

  * opensc 0.12.1-1ubuntu4
  * libssl1.0.0 1.0.1-2ubuntu4
  * qdigidoc 0.4.0-0ubuntu4

  The problem has been also tested on Oneiric and discussed in some
  length at: http://code.google.com/p/esteid/issues/detail?id=168

  I attach also some debug logs.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/972783/+subscriptions