crypto/ec/ecdsa_ossl.c:272: error: BUFFER_OVERRUN_L3
  Offset: [-1, +oo] Size: [1, +oo] by call to `BN_priv_rand`.
Showing all 14 steps of the trace


crypto/ec/ecdsa_ossl.c:272:38: Call
270.           /* Generate a blinding value */
271.           do {
272.               if (!BN_priv_rand(blind, BN_num_bits(order) - 1,
                                            ^
273.                                 BN_RAND_TOP_ANY, BN_RAND_BOTTOM_ANY))
274.                   goto err;

crypto/bn/bn_lib.c:141:9: Assignment
  139.   
  140.       if (BN_is_zero(a))
  141.           return 0;
                 ^
  142.       return ((i * BN_BITS2) + BN_num_bits_word(a->d[i]));
  143.   }

crypto/ec/ecdsa_ossl.c:272:18: Call
270.           /* Generate a blinding value */
271.           do {
272.               if (!BN_priv_rand(blind, BN_num_bits(order) - 1,
                        ^
273.                                 BN_RAND_TOP_ANY, BN_RAND_BOTTOM_ANY))
274.                   goto err;

crypto/bn/bn_rand.c:107:1: Parameter `bits`
  105.   }
  106.   
  107. > int BN_priv_rand(BIGNUM *rnd, int bits, int top, int bottom)
  108.   {
  109.       return bnrand(PRIVATE, rnd, bits, top, bottom);

crypto/bn/bn_rand.c:109:12: Call
  107.   int BN_priv_rand(BIGNUM *rnd, int bits, int top, int bottom)
  108.   {
  109.       return bnrand(PRIVATE, rnd, bits, top, bottom);
                    ^
  110.   }
  111.   

crypto/bn/bn_rand.c:57:14: <Offset trace>
55.           unsigned char c;
56.   
57.           for (i = 0; i < bytes; i++) {
                   ^
58.               if (RAND_bytes(&c, 1) <= 0)
59.                   goto err;

crypto/bn/bn_rand.c:57:14: Assignment
    55.           unsigned char c;
    56.   
    57.           for (i = 0; i < bytes; i++) {
                       ^
    58.               if (RAND_bytes(&c, 1) <= 0)
    59.                   goto err;

crypto/bn/bn_rand.c:21:1: <Length trace>
19.   } BNRAND_FLAG;
20.   
21. > static int bnrand(BNRAND_FLAG flag, BIGNUM *rnd, int bits, int top, int bottom)
22.   {
23.       unsigned char *buf = NULL;

crypto/bn/bn_rand.c:21:1: Parameter `bits`
    19.   } BNRAND_FLAG;
    20.   
    21. > static int bnrand(BNRAND_FLAG flag, BIGNUM *rnd, int bits, int top, int bottom)
    22.   {
    23.       unsigned char *buf = NULL;

crypto/bn/bn_rand.c:35:5: Assignment
    33.           goto toosmall;
    34.   
    35.       bytes = (bits + 7) / 8;
              ^
    36.       bit = (bits - 1) % 8;
    37.       mask = 0xff << (bit + 1);

crypto/bn/bn_rand.c:39:11: Call
    37.       mask = 0xff << (bit + 1);
    38.   
    39.       buf = OPENSSL_malloc(bytes);
                    ^
    40.       if (buf == NULL) {
    41.           BNerr(BN_F_BNRAND, ERR_R_MALLOC_FAILURE);

crypto/mem.c:201:9: Assignment
      199.   
      200.       if (num == 0)
      201.           return NULL;
                     ^
      202.   
      203.       FAILTEST();

crypto/bn/bn_rand.c:39:5: Assignment
    37.       mask = 0xff << (bit + 1);
    38.   
    39.       buf = OPENSSL_malloc(bytes);
              ^
    40.       if (buf == NULL) {
    41.           BNerr(BN_F_BNRAND, ERR_R_MALLOC_FAILURE);

crypto/bn/bn_rand.c:83:9: Array access: Offset: [-1, +oo] Size: [1, +oo] by call to `BN_priv_rand` 
    81.       buf[0] &= ~mask;
    82.       if (bottom)                 /* set bottom bit if requested */
    83.           buf[bytes - 1] |= 1;
                  ^
    84.       if (!BN_bin2bn(buf, bytes, rnd))
    85.           goto err;
