crypto/dh/dh_key.c:178: 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:144:1: Parameter `dh->p->top`
142.   }
143.   
144. > static int compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh)
145.   {
146.       BN_CTX *ctx = NULL;

crypto/dh/dh_key.c:152:9: Call
150.       int check_result;
151.   
152.       if (BN_num_bits(dh->p) > OPENSSL_DH_MAX_MODULUS_BITS) {
               ^
153.           DHerr(DH_F_COMPUTE_KEY, DH_R_MODULUS_TOO_LARGE);
154.           goto err;

crypto/bn/bn_lib.c:166:9: Call
  164.       bn_check_top(a);
  165.   
  166.       if (BN_is_zero(a))
                 ^
  167.           return 0;
  168.       return ((i * BN_BITS2) + BN_num_bits_word(a->d[i]));

crypto/bn/bn_lib.c:852:1: Parameter `a->top`
    850.   }
    851.   
    852. > int BN_is_zero(const BIGNUM *a)
    853.   {
    854.       return a->top == 0;

crypto/dh/dh_key.c:178:10: Call
176.       }
177.   
178.       if (!DH_check_pub_key(dh, pub_key, &check_result) || check_result) {
                ^
179.           DHerr(DH_F_COMPUTE_KEY, DH_R_INVALID_PUBKEY);
180.           goto err;

crypto/dh/dh_check.c:147:1: Parameter `dh->p->top`
  145.   }
  146.   
  147. > int DH_check_pub_key(const DH *dh, const BIGNUM *pub_key, int *ret)
  148.   {
  149.       int ok = 0;

crypto/dh/dh_check.c:163:9: Call
  161.       if (BN_cmp(pub_key, tmp) <= 0)
  162.           *ret |= DH_CHECK_PUBKEY_TOO_SMALL;
  163.       if (BN_copy(tmp, dh->p) == NULL || !BN_sub_word(tmp, 1))
                 ^
  164.           goto err;
  165.       if (BN_cmp(pub_key, tmp) >= 0)

crypto/bn/bn_lib.c:323:1: Parameter `b->top`
    321.   }
    322.   
    323. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
    324.   {
    325.       bn_check_top(b);

crypto/dh/dh_check.c:170:14: Call
  168.       if (dh->q != NULL) {
  169.           /* Check pub_key^q == 1 mod p */
  170.           if (!BN_mod_exp(tmp, pub_key, dh->q, dh->p, ctx))
                      ^
  171.               goto err;
  172.           if (!BN_is_one(tmp))

crypto/bn/bn_exp.c:91:1: Parameter `m->top`
    89.   }
    90.   
    91. > int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m,
    92.                  BN_CTX *ctx)
    93.   {

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

crypto/bn/bn_lib.c:867:1: Parameter `a->top`
      865.   }
      866.   
      867. > int BN_is_odd(const BIGNUM *a)
      868.   {
      869.       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:204:13: Call
      202.               goto err;
      203.       } else {
      204.           if (BN_RECP_CTX_set(&recp, m, ctx) <= 0)
                         ^
      205.               goto err;
      206.       }

crypto/bn/bn_recp.c:44:1: Parameter `d->top`
        42.   }
        43.   
        44. > int BN_RECP_CTX_set(BN_RECP_CTX *recp, const BIGNUM *d, BN_CTX *ctx)
        45.   {
        46.       if (!BN_copy(&(recp->N), d))

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

crypto/bn/bn_lib.c:323:1: <Offset trace>
321.   }
322.   
323. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
324.   {
325.       bn_check_top(b);

crypto/bn/bn_lib.c:323:1: Parameter `b->top`
          321.   }
          322.   
          323. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
          324.   {
          325.       bn_check_top(b);

crypto/bn/bn_lib.c:323:1: <Length trace>
321.   }
322.   
323. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
324.   {
325.       bn_check_top(b);

crypto/bn/bn_lib.c:323:1: Parameter `*a->d`
          321.   }
          322.   
          323. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
          324.   {
          325.       bn_check_top(b);

crypto/bn/bn_lib.c:329:9: Call
          327.       if (a == b)
          328.           return a;
          329.       if (bn_wexpand(a, b->top) == NULL)
                         ^
          330.           return NULL;
          331.   

crypto/bn/bn_lib.c:948:1: Parameter `*a->d`
            946.   }
            947.   
            948. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
            949.   {
            950.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:333:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `DH_check_pub_key` 
          331.   
          332.       if (b->top > 0)
          333.           memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);
                         ^
          334.   
          335.       a->top = b->top;
