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BN_zero fix

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van Hauser 2020-01-29 12:24:46 +01:00
commit 60c76d0c64
1 changed files with 7 additions and 6 deletions
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13
hydra-mod.c
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@ -466,24 +466,25 @@ int32_t internal__hydra_connect(char *host, int32_t port, int32_t type, int32_t
#if defined(LIBOPENSSL) && !defined(LIBRESSL_VERSION_NUMBER) #if defined(LIBOPENSSL) && !defined(LIBRESSL_VERSION_NUMBER)
RSA *ssl_temp_rsa_cb(SSL * ssl, int32_t export, int32_t keylength) { RSA *ssl_temp_rsa_cb(SSL * ssl, int32_t export, int32_t keylength) {
int32_t ok = 0; int32_t nok = 0;
#if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10100000L #if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10100000L
BIGNUM *n; BIGNUM *n;
n = BN_new(); if ((n = BN_new()) == NULL)
nok = 1;
RSA_get0_key(rsa, (const struct bignum_st **)&n, NULL, NULL); RSA_get0_key(rsa, (const struct bignum_st **)&n, NULL, NULL);
ok = BN_zero(n); BN_zero(n);
#else #else
if (rsa->n == 0) if (rsa->n == 0)
ok = 1; nok = 1;
#endif #endif
if(ok == 0 && RSA_size(rsa)!=(keylength/8)){ // n is not zero if (nok == 0 && RSA_size(rsa)!=(keylength/8)){ // n is not zero
#if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10100000L #if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10100000L
BN_free(n); BN_free(n);
#endif #endif
RSA_free(rsa); RSA_free(rsa);
rsa = NULL; rsa = NULL;
} }
if (ok != 0) { // n is zero if (nok != 0) { // n is zero
#if defined(NO_RSA_LEGACY) || OPENSSL_VERSION_NUMBER >= 0x10100000L #if defined(NO_RSA_LEGACY) || OPENSSL_VERSION_NUMBER >= 0x10100000L
RSA *rsa = RSA_new(); RSA *rsa = RSA_new();
BIGNUM *f4 = BN_new(); BIGNUM *f4 = BN_new();