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

[tabbernuk]

** Attachment added: "Valgrind log using pure OpenSSL 1.0.1-2ubuntu4"
   https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/972783/+attachment/2998329/+files/valgrind-verbose-precise-default.log

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Title:
  Crashes with segmentation fault operating asn1_meth_table

Status in “openssl” package in Ubuntu:
  New

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.

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