crypto/dsa/dsa_vrf.c:121: error: BUFFER_OVERRUN_L3
  Offset: [9, +oo] (⇐ [9, +oo] + [0, +oo]) Size: [0, +oo] by call to `BN_mod_exp2_mont`.
Showing all 20 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,
    72.   			  BN_MONT_CTX *mont, BN_CTX *ctx)
    73.   	{

crypto/bn/bn_exp2.c:80:7: Call
  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]),
  82.   		&(val[1][0]),&(val[0][1]),mont,ctx))

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,
    72.   			  BN_MONT_CTX *mont, 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:686:4: Call
      684.   			for (i=b->top; i<k; i++)
      685.   				b->d[i]=0;
      686.   			bn_mul_part_recursive(rr->d,a->d,b->d,al-j,j,t->d);
                ^
      687.   			}
      688.   		rr->top=top;

crypto/bn/bn_mul.c:218:1: Parameter `n`
        216.   /* n+tn is the word length
        217.    * t needs to be n*4 is size, as does r */
        218. > void bn_mul_part_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int tn,
        219.   	     int n, BN_ULONG *t)
        220.   	{

crypto/bn/bn_mul.c:264:4: Call
        262.   		if (j == 0)
        263.   			{
        264.   			bn_mul_recursive(&(r[n2]),&(a[n]),&(b[n]),i,p);
                  ^
        265.   			memset(&(r[n2+i*2]),0,sizeof(BN_ULONG)*(n2-i*2));
        266.   			}

crypto/bn/bn_mul.c:74:1: Parameter `*b`
          72.    * a[1]*b[1]
          73.    */
          74. > void bn_mul_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n2,
          75.   	     BN_ULONG *t)
          76.   	{

crypto/bn/bn_mul.c:104:5: Call
          102.   	/* r=(a[0]-a[1])*(b[1]-b[0]) */
          103.   	c1=bn_cmp_words(a,&(a[n]),n);
          104.   	c2=bn_cmp_words(&(b[n]),b,n);
                     ^
          105.   	zero=neg=0;
          106.   	switch (c1*3+c2)

crypto/bn/bn_lib.c:769:1: <Offset trace>
767.   	}
768.   
769. > int bn_cmp_words(BN_ULONG *a, BN_ULONG *b, int n)
770.   	{
771.   	int i;

crypto/bn/bn_lib.c:769:1: Parameter `n`
            767.   	}
            768.   
            769. > int bn_cmp_words(BN_ULONG *a, BN_ULONG *b, int n)
            770.   	{
            771.   	int i;

crypto/bn/bn_lib.c:777:7: Assignment
            775.   	bb=b[n-1];
            776.   	if (aa != bb) return((aa > bb)?1:-1);
            777.   	for (i=n-2; i>=0; i--)
                         ^
            778.   		{
            779.   		aa=a[i];

crypto/bn/bn_lib.c:769:1: <Length trace>
767.   	}
768.   
769. > int bn_cmp_words(BN_ULONG *a, BN_ULONG *b, int n)
770.   	{
771.   	int i;

crypto/bn/bn_lib.c:769:1: Parameter `*b`
            767.   	}
            768.   
            769. > int bn_cmp_words(BN_ULONG *a, BN_ULONG *b, int n)
            770.   	{
            771.   	int i;

crypto/bn/bn_lib.c:780:6: Array access: Offset: [9, +oo] (⇐ [9, +oo] + [0, +oo]) Size: [0, +oo] by call to `BN_mod_exp2_mont` 
            778.   		{
            779.   		aa=a[i];
            780.   		bb=b[i];
                        ^
            781.   		if (aa != bb) return((aa > bb)?1:-1);
            782.   		}
