crypto/dh/dh_key.c:195: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `DH_check_pub_key`.
Showing all 24 steps of the trace


crypto/dh/dh_key.c:161:1: Parameter `dh->p->top`
159.   }
160.   
161. > static int compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh)
162.   {
163.       BN_CTX *ctx = NULL;

crypto/dh/dh_key.c:169:9: Call
167.       int check_result;
168.   
169.       if (BN_num_bits(dh->p) > OPENSSL_DH_MAX_MODULUS_BITS) {
               ^
170.           DHerr(DH_F_COMPUTE_KEY, DH_R_MODULUS_TOO_LARGE);
171.           goto err;

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

crypto/bn/bn_lib.c:853:1: Parameter `a->top`
    851.   }
    852.   
    853. > int BN_is_zero(const BIGNUM *a)
    854.   {
    855.       return a->top == 0;

crypto/dh/dh_key.c:195:10: Call
193.       }
194.   
195.       if (!DH_check_pub_key(dh, pub_key, &check_result) || check_result) {
                ^
196.           DHerr(DH_F_COMPUTE_KEY, DH_R_INVALID_PUBKEY);
197.           goto err;

crypto/dh/dh_check.c:197:1: Parameter `dh->p->top`
  195.   }
  196.   
  197. > int DH_check_pub_key(const DH *dh, const BIGNUM *pub_key, int *ret)
  198.   {
  199.       int ok = 0;

crypto/dh/dh_check.c:213:9: Call
  211.       if (BN_cmp(pub_key, tmp) <= 0)
  212.           *ret |= DH_CHECK_PUBKEY_TOO_SMALL;
  213.       if (BN_copy(tmp, dh->p) == NULL || !BN_sub_word(tmp, 1))
                 ^
  214.           goto err;
  215.       if (BN_cmp(pub_key, tmp) >= 0)

crypto/bn/bn_lib.c:281:1: Parameter `b->top`
    279.   }
    280.   
    281. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
    282.   {
    283.       bn_check_top(b);

crypto/dh/dh_check.c:220:14: Call
  218.       if (dh->q != NULL) {
  219.           /* Check pub_key^q == 1 mod p */
  220.           if (!BN_mod_exp(tmp, pub_key, dh->q, dh->p, ctx))
                      ^
  221.               goto err;
  222.           if (!BN_is_one(tmp))

crypto/bn/bn_exp.c:89:1: Parameter `m->top`
    87.   }
    88.   
    89. > int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m,
    90.                  BN_CTX *ctx)
    91.   {

crypto/bn/bn_exp.c:134:9: Call
    132.   
    133.   #ifdef MONT_MUL_MOD
    134.       if (BN_is_odd(m)) {
                   ^
    135.   # ifdef MONT_EXP_WORD
    136.           if (a->top == 1 && !a->neg

crypto/bn/bn_lib.c:868:1: Parameter `a->top`
      866.   }
      867.   
      868. > int BN_is_odd(const BIGNUM *a)
      869.   {
      870.       return (a->top > 0) && (a->d[0] & 1);

crypto/bn/bn_exp.c:149:15: Call
    147.   #ifdef RECP_MUL_MOD
    148.       {
    149.           ret = BN_mod_exp_recp(r, a, p, m, ctx);
                         ^
    150.       }
    151.   #else

crypto/bn/bn_exp.c:161:1: Parameter `m->top`
      159.   }
      160.   
      161. > int BN_mod_exp_recp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
      162.                       const BIGNUM *m, BN_CTX *ctx)
      163.   {

crypto/bn/bn_exp.c:206:13: Call
      204.               goto err;
      205.       } else {
      206.           if (BN_RECP_CTX_set(&recp, m, ctx) <= 0)
                         ^
      207.               goto err;
      208.       }

crypto/bn/bn_recp.c:45:1: Parameter `d->top`
        43.   }
        44.   
        45. > int BN_RECP_CTX_set(BN_RECP_CTX *recp, const BIGNUM *d, BN_CTX *ctx)
        46.   {
        47.       if (!BN_copy(&(recp->N), d))

crypto/bn/bn_recp.c:47:10: Call
        45.   int BN_RECP_CTX_set(BN_RECP_CTX *recp, const BIGNUM *d, BN_CTX *ctx)
        46.   {
        47.       if (!BN_copy(&(recp->N), d))
                       ^
        48.           return 0;
        49.       BN_zero(&(recp->Nr));

crypto/bn/bn_lib.c:281:1: <Offset trace>
279.   }
280.   
281. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
282.   {
283.       bn_check_top(b);

crypto/bn/bn_lib.c:281:1: Parameter `b->top`
          279.   }
          280.   
          281. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
          282.   {
          283.       bn_check_top(b);

crypto/bn/bn_lib.c:281:1: <Length trace>
279.   }
280.   
281. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
282.   {
283.       bn_check_top(b);

crypto/bn/bn_lib.c:281:1: Parameter `*a->d`
          279.   }
          280.   
          281. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
          282.   {
          283.       bn_check_top(b);

crypto/bn/bn_lib.c:287:9: Call
          285.       if (a == b)
          286.           return a;
          287.       if (bn_wexpand(a, b->top) == NULL)
                         ^
          288.           return NULL;
          289.   

crypto/bn/bn_lib.c:949:1: Parameter `*a->d`
            947.   }
            948.   
            949. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
            950.   {
            951.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:291:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `DH_check_pub_key` 
          289.   
          290.       if (b->top > 0)
          291.           memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);
                         ^
          292.   
          293.       a->neg = b->neg;
