crypto/dsa/dsa_vrf.c:121: error: BUFFER_OVERRUN_L3
  Offset: [4, +oo] (⇐ [0, +oo] + 4) Size: [0, +oo] by call to `BN_mod_exp2_mont`.
Showing all 11 steps of the trace


crypto/dsa/dsa_vrf.c:69:1: Parameter `dsa->method_mont_p->RR.d`
67.   #include <openssl/asn1_mac.h>
68.   
69. > int DSA_do_verify(const unsigned char *dgst, int dgst_len, DSA_SIG *sig,
70.   		  DSA *dsa)
71.   	{

crypto/dsa/dsa_vrf.c:121:7: Call
119.   #else
120.   	{
121.   	if (!BN_mod_exp2_mont(&t1,dsa->g,&u1,dsa->pub_key,&u2,dsa->p,ctx,mont))
             ^
122.   		goto err;
123.   	/* BN_copy(&u1,&t1); */

crypto/bn/bn_exp2.c:18:1: Parameter `*in_mont->RR.d`
  16.   #define EXP2_TABLE_SIZE	4 /* 2  4  8 16 32  */
  17.   
  18. > int BN_mod_exp2_mont(BIGNUM *rr, BIGNUM *a1, BIGNUM *p1, BIGNUM *a2,
  19.   	     BIGNUM *p2, BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)
  20.   	{

crypto/bn/bn_exp2.c:79:7: Call
  77.   	else
  78.   		aa2=a2;
  79.   	if (!BN_to_montgomery(&(val[1][0]),aa1,mont,ctx)) goto err;
              ^
  80.   	if (!BN_to_montgomery(&(val[0][1]),aa2,mont,ctx)) goto err;
  81.   	if (!BN_mod_mul_montgomery(&(val[1][1]),

crypto/bn/bn_mont.c:71:1: Parameter `*b->d`
    69.   #define MONT_WORD
    70.   
    71. > int BN_mod_mul_montgomery(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_MONT_CTX *mont,
    72.   	     BN_CTX *ctx)
    73.   	{

crypto/bn/bn_mont.c:98:8: Call
    96.   	else
    97.   		{
    98.   		if (!BN_mul(tmp,a,b,ctx)) goto err;
                  ^
    99.   		}
    100.   	/* reduce from aRR to aR */

crypto/bn/bn_mul.c:560:1: Parameter `*b->d`
      558.   #endif
      559.   
      560. > int BN_mul(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_CTX *ctx)
      561.   	{
      562.   	int top,al,bl;

crypto/bn/bn_mul.c:619:4: Call
      617.   			if (bn_wexpand(rr,top) == NULL) return(0);
      618.   			rr->top=top;
      619.   			bn_mul_normal(rr->d,a->d,al,b->d,bl);
                ^
      620.   			goto end;
      621.   			}

crypto/bn/bn_mul.c:699:1: <Length trace>
697.   	}
698.   
699. > void bn_mul_normal(BN_ULONG *r, BN_ULONG *a, int na, BN_ULONG *b, int nb)
700.   	{
701.   	BN_ULONG *rr;

crypto/bn/bn_mul.c:699:1: Parameter `*b`
        697.   	}
        698.   
        699. > void bn_mul_normal(BN_ULONG *r, BN_ULONG *a, int na, BN_ULONG *b, int nb)
        700.   	{
        701.   	BN_ULONG *rr;

crypto/bn/bn_mul.c:728:39: Array access: Offset: [4, +oo] (⇐ [0, +oo] + 4) Size: [0, +oo] by call to `BN_mod_exp2_mont` 
        726.   		rr[3]=bn_mul_add_words(&(r[3]),a,na,b[3]);
        727.   		if (--nb <= 0) return;
        728.   		rr[4]=bn_mul_add_words(&(r[4]),a,na,b[4]);
                                                     ^
        729.   		rr+=4;
        730.   		r+=4;
