apps/testdsa.h:265: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 536870848] by call to `BN_bin2bn`.
Showing all 14 steps of the trace


apps/testdsa.h:264:16: Call
262.       if ((dsa = DSA_new()) == NULL)
263.           return (NULL);
264.       priv_key = BN_bin2bn(dsa2048_priv, sizeof(dsa2048_priv), NULL);
                      ^
265.       pub_key = BN_bin2bn(dsa2048_pub, sizeof(dsa2048_pub), NULL);
266.       p = BN_bin2bn(dsa2048_p, sizeof(dsa2048_p), NULL);

crypto/bn/bn_lib.c:407:1: Parameter `*ret->d`
  405.   }
  406.   
  407. > BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret)
  408.   {
  409.       unsigned int i, m;

apps/testdsa.h:265:15: Call
263.           return (NULL);
264.       priv_key = BN_bin2bn(dsa2048_priv, sizeof(dsa2048_priv), NULL);
265.       pub_key = BN_bin2bn(dsa2048_pub, sizeof(dsa2048_pub), NULL);
                     ^
266.       p = BN_bin2bn(dsa2048_p, sizeof(dsa2048_p), NULL);
267.       q = BN_bin2bn(dsa2048_q, sizeof(dsa2048_q), NULL);

crypto/bn/bn_lib.c:407:1: Parameter `*ret->d`
  405.   }
  406.   
  407. > BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret)
  408.   {
  409.       unsigned int i, m;

crypto/bn/bn_lib.c:429:9: Call
  427.       i = ((n - 1) / BN_BYTES) + 1;
  428.       m = ((n - 1) % (BN_BYTES));
  429.       if (bn_wexpand(ret, (int)i) == NULL) {
                 ^
  430.           BN_free(bn);
  431.           return NULL;

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:950:37: Call
    948.   BIGNUM *bn_wexpand(BIGNUM *a, int words)
    949.   {
    950.       return (words <= a->dmax) ? a : bn_expand2(a, words);
                                               ^
    951.   }
    952.   

crypto/bn/bn_lib.c:284:1: Parameter `*b->d`
      282.    */
      283.   
      284. > BIGNUM *bn_expand2(BIGNUM *b, int words)
      285.   {
      286.       bn_check_top(b);

crypto/bn/bn_lib.c:289:23: Call
      287.   
      288.       if (words > b->dmax) {
      289.           BN_ULONG *a = bn_expand_internal(b, words);
                                   ^
      290.           if (!a)
      291.               return NULL;

crypto/bn/bn_lib.c:246:1: <Offset trace>
244.   /* This is used by bn_expand2() */
245.   /* The caller MUST check that words > b->dmax before calling this */
246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
247.   {
248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:246:1: Parameter `b->top`
        244.   /* This is used by bn_expand2() */
        245.   /* The caller MUST check that words > b->dmax before calling this */
        246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
        247.   {
        248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:246:1: <Length trace>
244.   /* This is used by bn_expand2() */
245.   /* The caller MUST check that words > b->dmax before calling this */
246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
247.   {
248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:246:1: Parameter `*b->d`
        244.   /* This is used by bn_expand2() */
        245.   /* The caller MUST check that words > b->dmax before calling this */
        246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
        247.   {
        248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:271:9: Array access: Offset added: [8, +oo] Size: [0, 536870848] by call to `BN_bin2bn` 
        269.       assert(b->top <= words);
        270.       if (b->top > 0)
        271.           memcpy(a, b->d, sizeof(*a) * b->top);
                       ^
        272.   
        273.       return a;

static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
    BN_ULONG *a = NULL;
    bn_check_top(b);
    if (words > (INT_MAX / (4 * BN_BITS2))) {
        BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
        return NULL;
    }
    if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
        BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
        return (NULL);
    }
    if (BN_get_flags(b, BN_FLG_SECURE))
        a = OPENSSL_secure_zalloc(words * sizeof(*a));
    else
        a = OPENSSL_zalloc(words * sizeof(*a));
    if (a == NULL) {
        BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
        return (NULL);
    }
    assert(b->top <= words);
    if (b->top > 0)
        memcpy(a, b->d, sizeof(*a) * b->top);
    return a;
}
['DSA *get_dsa2048()\n{\n    DSA *dsa;\n    BIGNUM *priv_key, *pub_key, *p, *q, *g;\n    if ((dsa = DSA_new()) == NULL)\n        return (NULL);\n    priv_key = BN_bin2bn(dsa2048_priv, sizeof(dsa2048_priv), NULL);\n    pub_key = BN_bin2bn(dsa2048_pub, sizeof(dsa2048_pub), NULL);\n    p = BN_bin2bn(dsa2048_p, sizeof(dsa2048_p), NULL);\n    q = BN_bin2bn(dsa2048_q, sizeof(dsa2048_q), NULL);\n    g = BN_bin2bn(dsa2048_g, sizeof(dsa2048_g), NULL);\n    if ((priv_key == NULL) || (pub_key == NULL) || (p == NULL) || (q == NULL)\n            || (g == NULL)) {\n        goto err;\n    }\n    if (!DSA_set0_pqg(dsa, p, q, g))\n        goto err;\n    p = q = g = NULL;\n    if (!DSA_set0_key(dsa, pub_key, priv_key))\n        goto err;\n    return dsa;\n err:\n    DSA_free(dsa);\n    BN_free(priv_key);\n    BN_free(pub_key);\n    BN_free(p);\n    BN_free(q);\n    BN_free(g);\n    return NULL;\n}', 'BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret)\n{\n    unsigned int i, m;\n    unsigned int n;\n    BN_ULONG l;\n    BIGNUM *bn = NULL;\n    if (ret == NULL)\n        ret = bn = BN_new();\n    if (ret == NULL)\n        return (NULL);\n    bn_check_top(ret);\n    for ( ; len > 0 && *s == 0; s++, len--)\n        continue;\n    n = len;\n    if (n == 0) {\n        ret->top = 0;\n        return (ret);\n    }\n    i = ((n - 1) / BN_BYTES) + 1;\n    m = ((n - 1) % (BN_BYTES));\n    if (bn_wexpand(ret, (int)i) == NULL) {\n        BN_free(bn);\n        return NULL;\n    }\n    ret->top = i;\n    ret->neg = 0;\n    l = 0;\n    while (n--) {\n        l = (l << 8L) | *(s++);\n        if (m-- == 0) {\n            ret->d[--i] = l;\n            l = 0;\n            m = BN_BYTES - 1;\n        }\n    }\n    bn_correct_top(ret);\n    return (ret);\n}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n    return (words <= a->dmax) ? a : bn_expand2(a, words);\n}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n    bn_check_top(b);\n    if (words > b->dmax) {\n        BN_ULONG *a = bn_expand_internal(b, words);\n        if (!a)\n            return NULL;\n        if (b->d) {\n            OPENSSL_cleanse(b->d, b->dmax * sizeof(b->d[0]));\n            bn_free_d(b);\n        }\n        b->d = a;\n        b->dmax = words;\n    }\n    bn_check_top(b);\n    return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n    BN_ULONG *a = NULL;\n    bn_check_top(b);\n    if (words > (INT_MAX / (4 * BN_BITS2))) {\n        BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);\n        return NULL;\n    }\n    if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n        BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n        return (NULL);\n    }\n    if (BN_get_flags(b, BN_FLG_SECURE))\n        a = OPENSSL_secure_zalloc(words * sizeof(*a));\n    else\n        a = OPENSSL_zalloc(words * sizeof(*a));\n    if (a == NULL) {\n        BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n        return (NULL);\n    }\n    assert(b->top <= words);\n    if (b->top > 0)\n        memcpy(a, b->d, sizeof(*a) * b->top);\n    return a;\n}']