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 functiongnutls_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;
                }
Thefunctionreturns a negative value. I launched my code with gdb and got the stack trace.Itseems that _gnutls_get_pkix() returned a NULL valuebut 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=0xbffff24c, len=128) at random.c:73
73           {
74             return _gnutls_rnd(level, data, len);
 
_gnutls_rnd (len=128,
data=0xbffff24c, 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=0xbffff24c, 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
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