gnutls_3.1.1issues

[slobozian daniel]

Hello,

I encountered some issues while using gnutls 3.1.1 API on Ubuntu 12.04 with VirtualBox. 

Software that I installed:

·         m4                        –            1.4.16

·         gmp                      –             5.0.5

·         nettle                    –            2.5

·         p11-kit                 –            0.13

·         trousers               –            0.3.9

·         tasn1                    –            2.13

·         gnutls                   –            3.1.1

cfd

The first issue  appeared while using the function gnutls_x509_crt_init.  Here is what I did:

gnutls_x509_crt_t gnutls_certificate;

if(gnutls_x509_crt_init(&gnutls_certificate)<0)

                {

                               CRYPTO_ERROR("Certificate init failed");

                               return FAILURE;

                }

The function returns a negative value. I launched my code with gdb and got the stack trace. It seems that _gnutls_get_pkix() returned a NULL value but I dont know why.

Here is the stack:

gnutls_x509_crt_init (cert=0xbffff288) at x509.c:47

47            {

48              gnutls_x509_crt_t tmp = gnutls_calloc (1, sizeof (gnutls_x509_crt_int));

51              if (!tmp)

54              result = asn1_create_element (_gnutls_get_pkix (),"PKIX1.Certificate", &tmp->cert);

 

                asn1_create_element (definitions=0x0, source_name=0x8139b9f "PKIX1.Certificate", element=0x8174c70) at structure.c:667

                667          {

                671            dest_node = _asn1_copy_structure2 (definitions, source_name);

 

                               _asn1_copy_structure2 (source_name=0x8139b9f "PKIX1.Certificate", root=0x0) at structure.c:448

                               448            source_node = asn1_find_node (root, source_name);

 

                                               asn1_find_node (pointer=0x0, name=0x8139b9f "PKIX1.Certificate") at parser_aux.c:94

                                               94            {

                                               99              if (pointer == NULL)

                                               103              return NULL;

                                               186          }

 

                               450            return _asn1_copy_structure3 (source_node);

 

                                               _asn1_copy_structure3 (source_node=0x0) at structure.c:376

                                               376          {

                                               381              return NULL;

                                               380            if (source_node == NULL)

                                               440          }

 

                673            if (dest_node == NULL)

                674              return ASN1_ELEMENT_NOT_FOUND;

                684          }

 

56              if (result != ASN1_SUCCESS)

58                  gnutls_assert ();

59                  gnutls_free (tmp);

60                  return _gnutls_asn2err (result);

61            }

The second issue appeared while using the function gnutls_rnd. Here is what i did:

unsigned char noncebuf[128];
gnutls_datum_t nonce = { noncebuf, sizeof (noncebuf) };
gnutls_rnd (GNUTLS_RND_RANDOM, nonce.data, nonce.size);

The program ends with a segmentation fault.

Here is the stack trace:

gnutls_rnd (level=GNUTLS_RND_RANDOM, data="" len=128) at random.c:73

73           {

74             return _gnutls_rnd(level, data, len);

 

_gnutls_rnd (len=128, data="" level=GNUTLS_RND_RANDOM) at ./random.h:36

36             if (len > 0)

38                 return _gnutls_rnd_ops.rnd (gnutls_rnd_ctx, level, data, len);

 

wrap_nettle_rnd (_ctx=0x0, level=1, data="" datasize=128) at rnd.c:445

445         {

448           RND_LOCK;

 

gnutls_system_mutex_lock (priv=0x8173080) at system.c:230

230        {

231          if (pthread_mutex_lock ((pthread_mutex_t *) * priv))

 

Program received signal SIGSEGV, Segmentation fault.

0xb7f2dcb7 in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0

Single stepping until exit from function pthread_mutex_lock, which has no line number information.

Program terminated with signal SIGSEGV, Segmentation fault.

Thank you in advance for your answer

Regards,

Daniel Slobozian