ssl/tls_srp.c:255: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `SRP_Calc_server_key`.
Showing all 34 steps of the trace


ssl/tls_srp.c:245:1: Parameter `s->srp_ctx.N->top`
243.   }
244.   
245. > int srp_generate_server_master_secret(SSL *s)
246.   {
247.       BIGNUM *K = NULL, *u = NULL;

ssl/tls_srp.c:251:10: Call
249.       unsigned char *tmp = NULL;
250.   
251.       if (!SRP_Verify_A_mod_N(s->srp_ctx.A, s->srp_ctx.N))
                ^
252.           goto err;
253.       if ((u = SRP_Calc_u(s->srp_ctx.A, s->srp_ctx.B, s->srp_ctx.N)) == NULL)

crypto/srp/srp_lib.c:233:1: Parameter `N->top`
  231.   }
  232.   
  233. > int SRP_Verify_A_mod_N(const BIGNUM *A, const BIGNUM *N)
  234.   {
  235.       /* Checks if A % N == 0 */

crypto/srp/srp_lib.c:236:12: Call
  234.   {
  235.       /* Checks if A % N == 0 */
  236.       return SRP_Verify_B_mod_N(A, N);
                    ^
  237.   }
  238.   

crypto/srp/srp_lib.c:212:1: Parameter `N->top`
    210.   }
    211.   
    212. > int SRP_Verify_B_mod_N(const BIGNUM *B, const BIGNUM *N)
    213.   {
    214.       BIGNUM *r;

ssl/tls_srp.c:253:14: Call
251.       if (!SRP_Verify_A_mod_N(s->srp_ctx.A, s->srp_ctx.N))
252.           goto err;
253.       if ((u = SRP_Calc_u(s->srp_ctx.A, s->srp_ctx.B, s->srp_ctx.N)) == NULL)
                    ^
254.           goto err;
255.       if ((K = SRP_Calc_server_key(s->srp_ctx.A, s->srp_ctx.v, u, s->srp_ctx.b,

crypto/srp/srp_lib.c:47:1: Parameter `N->top`
  45.   }
  46.   
  47. > BIGNUM *SRP_Calc_u(const BIGNUM *A, const BIGNUM *B, const BIGNUM *N)
  48.   {
  49.       /* k = SHA1(PAD(A) || PAD(B) ) -- tls-srp draft 8 */

crypto/srp/srp_lib.c:50:12: Call
  48.   {
  49.       /* k = SHA1(PAD(A) || PAD(B) ) -- tls-srp draft 8 */
  50.       return srp_Calc_xy(A, B, N);
                   ^
  51.   }
  52.   

crypto/srp/srp_lib.c:19:1: Parameter `N->top`
    17.   /* calculate = SHA1(PAD(x) || PAD(y)) */
    18.   
    19. > static BIGNUM *srp_Calc_xy(const BIGNUM *x, const BIGNUM *y, const BIGNUM *N)
    20.   {
    21.       unsigned char digest[SHA_DIGEST_LENGTH];

crypto/srp/srp_lib.c:23:16: Call
    21.       unsigned char digest[SHA_DIGEST_LENGTH];
    22.       unsigned char *tmp = NULL;
    23.       int numN = BN_num_bytes(N);
                         ^
    24.       BIGNUM *res = NULL;
    25.       if (x != N && BN_ucmp(x, N) >= 0)

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:841:1: Parameter `a->top`
        839.   }
        840.   
        841. > int BN_is_zero(const BIGNUM *a)
        842.   {
        843.       return a->top == 0;

ssl/tls_srp.c:255:14: Call
253.       if ((u = SRP_Calc_u(s->srp_ctx.A, s->srp_ctx.B, s->srp_ctx.N)) == NULL)
254.           goto err;
255.       if ((K = SRP_Calc_server_key(s->srp_ctx.A, s->srp_ctx.v, u, s->srp_ctx.b,
                    ^
256.                                    s->srp_ctx.N)) == NULL)
257.           goto err;

crypto/srp/srp_lib.c:53:1: Parameter `N->top`
  51.   }
  52.   
  53. > BIGNUM *SRP_Calc_server_key(const BIGNUM *A, const BIGNUM *v, const BIGNUM *u,
  54.                               const BIGNUM *b, const BIGNUM *N)
  55.   {

crypto/srp/srp_lib.c:67:10: Call
  65.       /* S = (A*v**u) ** b */
  66.   
  67.       if (!BN_mod_exp(tmp, v, u, N, bn_ctx))
                 ^
  68.           goto err;
  69.       if (!BN_mod_mul(tmp, A, tmp, N, bn_ctx))

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:856:1: Parameter `a->top`
      854.   }
      855.   
      856. > int BN_is_odd(const BIGNUM *a)
      857.   {
      858.       return (a->top > 0) && (a->d[0] & 1);

crypto/bn/bn_exp.c:141:19: Call
    139.               && (BN_get_flags(m, BN_FLG_CONSTTIME) == 0)) {
    140.               BN_ULONG A = a->d[0];
    141.               ret = BN_mod_exp_mont_word(r, A, p, m, ctx, NULL);
                             ^
    142.           } else
    143.   # endif

crypto/bn/bn_exp.c:1097:1: Parameter `m->top`
      1095.   }
      1096.   
      1097. > int BN_mod_exp_mont_word(BIGNUM *rr, BN_ULONG a, const BIGNUM *p,
      1098.                            const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)
      1099.   {

crypto/bn/bn_exp.c:1133:10: Call
      1131.       bn_check_top(m);
      1132.   
      1133.       if (!BN_is_odd(m)) {
                       ^
      1134.           BNerr(BN_F_BN_MOD_EXP_MONT_WORD, BN_R_CALLED_WITH_EVEN_MODULUS);
      1135.           return 0;

crypto/bn/bn_lib.c:856:1: Parameter `a->top`
        854.   }
        855.   
        856. > int BN_is_odd(const BIGNUM *a)
        857.   {
        858.       return (a->top > 0) && (a->d[0] & 1);

crypto/bn/bn_exp.c:1168:14: Call
      1166.           if ((mont = BN_MONT_CTX_new()) == NULL)
      1167.               goto err;
      1168.           if (!BN_MONT_CTX_set(mont, m, ctx))
                           ^
      1169.               goto err;
      1170.       }

crypto/bn/bn_mont.c:247:1: Parameter `mod->top`
        245.   }
        246.   
        247. > int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)
        248.   {
        249.       int ret = 0;

crypto/bn/bn_mont.c:252:9: Call
        250.       BIGNUM *Ri, *R;
        251.   
        252.       if (BN_is_zero(mod))
                       ^
        253.           return 0;
        254.   

crypto/bn/bn_lib.c:841:1: Parameter `a->top`
          839.   }
          840.   
          841. > int BN_is_zero(const BIGNUM *a)
          842.   {
          843.       return a->top == 0;

crypto/bn/bn_mont.c:259:10: Call
        257.           goto err;
        258.       R = &(mont->RR);            /* grab RR as a temp */
        259.       if (!BN_copy(&(mont->N), mod))
                        ^
        260.           goto err;               /* Set N */
        261.       if (BN_get_flags(mod, BN_FLG_CONSTTIME) != 0)

crypto/bn/bn_lib.c:312:1: <Offset trace>
310.   }
311.   
312. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
313.   {
314.       bn_check_top(b);

crypto/bn/bn_lib.c:312:1: Parameter `b->top`
          310.   }
          311.   
          312. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
          313.   {
          314.       bn_check_top(b);

crypto/bn/bn_lib.c:312:1: <Length trace>
310.   }
311.   
312. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
313.   {
314.       bn_check_top(b);

crypto/bn/bn_lib.c:312:1: Parameter `*a->d`
          310.   }
          311.   
          312. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
          313.   {
          314.       bn_check_top(b);

crypto/bn/bn_lib.c:318:9: Call
          316.       if (a == b)
          317.           return a;
          318.       if (bn_wexpand(a, b->top) == NULL)
                         ^
          319.           return NULL;
          320.   

crypto/bn/bn_lib.c:937:1: Parameter `*a->d`
            935.   }
            936.   
            937. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
            938.   {
            939.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:322:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `SRP_Calc_server_key` 
          320.   
          321.       if (b->top > 0)
          322.           memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);
                         ^
          323.   
          324.       a->top = b->top;
