Commit 689f9fab authored by Nils Larsch's avatar Nils Larsch
Browse files

fix potential memory leaks 

PR: 1462
parent 82686bdc

crypto/pkcs7/pk7_doit.c

+39 −8
Original line number Diff line number Diff line
@@ -331,7 +331,9 @@ BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio) 
		keylen=EVP_CIPHER_key_length(evp_cipher);

		ivlen=EVP_CIPHER_iv_length(evp_cipher);

		xalg->algorithm = OBJ_nid2obj(EVP_CIPHER_type(evp_cipher));

		if (ivlen > 0) RAND_pseudo_bytes(iv,ivlen);

		if (ivlen > 0)

			if (RAND_pseudo_bytes(iv,ivlen) <= 0)

				goto err;

		if (EVP_CipherInit_ex(ctx, evp_cipher, NULL, NULL, NULL, 1)<=0)

			goto err;

		if (EVP_CIPHER_CTX_rand_key(ctx, key) <= 0)
@@ -340,8 +342,11 @@ BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio) 
			goto err;



		if (ivlen > 0) {

			if (xalg->parameter == NULL) 

			if (xalg->parameter == NULL) {

				xalg->parameter = ASN1_TYPE_new();

				if (xalg->parameter == NULL)

					goto err;

			}

			if(EVP_CIPHER_param_to_asn1(ctx, xalg->parameter) < 0)

				goto err;

		}
@@ -371,6 +376,8 @@ BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio) 
		if(bio == NULL)

			{

			bio=BIO_new(BIO_s_mem());

			if (bio == NULL)

				goto err;

			BIO_set_mem_eof_return(bio,0);

			}

		}
@@ -613,6 +620,8 @@ BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert) 
			bio=BIO_new(BIO_s_mem());

			BIO_set_mem_eof_return(bio,0);

		}

		if (bio == NULL)

			goto err;

#endif

		}

	BIO_push(out,bio);
@@ -1080,8 +1089,13 @@ PKCS7_ISSUER_AND_SERIAL *PKCS7_get_issuer_and_serial(PKCS7 *p7, int idx) 
	int i;



	i=OBJ_obj2nid(p7->type);

	if (i != NID_pkcs7_signedAndEnveloped) return(NULL);

	if (i != NID_pkcs7_signedAndEnveloped)

		return NULL;

	if (p7->d.signed_and_enveloped == NULL)

		return NULL;

	rsk=p7->d.signed_and_enveloped->recipientinfo;

	if (rsk == NULL)

		return NULL;

	ri=sk_PKCS7_RECIP_INFO_value(rsk,0);

	if (sk_PKCS7_RECIP_INFO_num(rsk) <= idx) return(NULL);

	ri=sk_PKCS7_RECIP_INFO_value(rsk,idx);
@@ -1135,6 +1149,8 @@ int PKCS7_set_signed_attributes(PKCS7_SIGNER_INFO *p7si, 
	if (p7si->auth_attr != NULL)

		sk_X509_ATTRIBUTE_pop_free(p7si->auth_attr,X509_ATTRIBUTE_free);

	p7si->auth_attr=sk_X509_ATTRIBUTE_dup(sk);

	if (p7si->auth_attr == NULL)

		return 0;

	for (i=0; i<sk_X509_ATTRIBUTE_num(sk); i++)

		{

		if ((sk_X509_ATTRIBUTE_set(p7si->auth_attr,i,
@@ -1153,6 +1169,8 @@ int PKCS7_set_attributes(PKCS7_SIGNER_INFO *p7si, STACK_OF(X509_ATTRIBUTE) *sk) 
		sk_X509_ATTRIBUTE_pop_free(p7si->unauth_attr,

					   X509_ATTRIBUTE_free);

	p7si->unauth_attr=sk_X509_ATTRIBUTE_dup(sk);

	if (p7si->unauth_attr == NULL)

		return 0;

	for (i=0; i<sk_X509_ATTRIBUTE_num(sk); i++)

		{

		if ((sk_X509_ATTRIBUTE_set(p7si->unauth_attr,i,
@@ -1183,9 +1201,16 @@ static int add_attribute(STACK_OF(X509_ATTRIBUTE) **sk, int nid, int atrtype, 
	if (*sk == NULL)

		{

		*sk = sk_X509_ATTRIBUTE_new_null();

		if (*sk == NULL)

			return 0;	

new_attrib:

		attr=X509_ATTRIBUTE_create(nid,atrtype,value);

		sk_X509_ATTRIBUTE_push(*sk,attr);

		if (!(attr=X509_ATTRIBUTE_create(nid,atrtype,value)))

			return 0;

		if (!sk_X509_ATTRIBUTE_push(*sk,attr))

			{

			X509_ATTRIBUTE_free(attr);

			return 0;

			}

		}

	else

		{
@@ -1198,7 +1223,13 @@ new_attrib: 
				{

				X509_ATTRIBUTE_free(attr);

				attr=X509_ATTRIBUTE_create(nid,atrtype,value);

				sk_X509_ATTRIBUTE_set(*sk,i,attr);

				if (attr == NULL)

					return 0;

				if (!sk_X509_ATTRIBUTE_set(*sk,i,attr))

					{

					X509_ATTRIBUTE_free(attr);

					return 0;

					}

				goto end;

				}

			}

crypto/pkcs7/pk7_lib.c

+33 −7
Original line number Diff line number Diff line
@@ -272,16 +272,23 @@ int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi) 
	if (!j) /* we need to add another algorithm */

		{

		if(!(alg=X509_ALGOR_new())

			|| !(alg->parameter = ASN1_TYPE_new())) {

			|| !(alg->parameter = ASN1_TYPE_new()))

			{

			X509_ALGOR_free(alg);

			PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE);

			return(0);

			}

		alg->algorithm=OBJ_nid2obj(nid);

		alg->parameter->type = V_ASN1_NULL;

		sk_X509_ALGOR_push(md_sk,alg);

		if (!sk_X509_ALGOR_push(md_sk,alg))

			{

			X509_ALGOR_free(alg);

			return 0;

			}

		}



	sk_PKCS7_SIGNER_INFO_push(signer_sk,psi);

	if (!sk_PKCS7_SIGNER_INFO_push(signer_sk,psi))

		return 0;

	return(1);

	}
@@ -306,8 +313,17 @@ int PKCS7_add_certificate(PKCS7 *p7, X509 *x509) 


	if (*sk == NULL)

		*sk=sk_X509_new_null();

	if (*sk == NULL)

		{

		PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, ERR_R_MALLOC_FAILURE);

		return 0;

		}

	CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);

	sk_X509_push(*sk,x509);

	if (!sk_X509_push(*sk,x509))

		{

		X509_free(x509);

		return 0;

		}

	return(1);

	}
@@ -332,9 +348,18 @@ int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl) 


	if (*sk == NULL)

		*sk=sk_X509_CRL_new_null();

	if (*sk == NULL)

		{

		PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,ERR_R_MALLOC_FAILURE);

		return 0;

		}



	CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);

	sk_X509_CRL_push(*sk,crl);

	if (!sk_X509_CRL_push(*sk,crl))

		{

		X509_CRL_free(crl);

		return 0;

		}

	return(1);

	}
@@ -496,7 +521,8 @@ int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri) 
		return(0);

		}



	sk_PKCS7_RECIP_INFO_push(sk,ri);

	if (!sk_PKCS7_RECIP_INFO_push(sk,ri))

		return 0;

	return(1);

	}

crypto/pkcs7/pk7_smime.c

+13 −5
Original line number Diff line number Diff line
@@ -378,7 +378,8 @@ int PKCS7_verify(PKCS7 *p7, STACK_OF(X509) *certs, X509_STORE *store, 
		tmpin = indata;

		



	p7bio=PKCS7_dataInit(p7,tmpin);

	if (!(p7bio=PKCS7_dataInit(p7,tmpin)))

		goto err;



	if(flags & PKCS7_TEXT) {

		if(!(tmpout = BIO_new(BIO_s_mem()))) {
@@ -483,7 +484,10 @@ STACK_OF(X509) *PKCS7_get0_signers(PKCS7 *p7, STACK_OF(X509) *certs, int flags) 
			return 0;

	    }



	    sk_X509_push(signers, signer);

	    if (!sk_X509_push(signers, signer)) {

		sk_X509_free(signers);

		return NULL;

	    }

	}

	return signers;

}
@@ -503,7 +507,8 @@ PKCS7 *PKCS7_encrypt(STACK_OF(X509) *certs, BIO *in, const EVP_CIPHER *cipher, 
		return NULL;

	}



	PKCS7_set_type(p7, NID_pkcs7_enveloped);

	if (!PKCS7_set_type(p7, NID_pkcs7_enveloped))

		goto err;

	if (!PKCS7_set_cipher(p7, cipher)) {

		PKCS7err(PKCS7_F_PKCS7_ENCRYPT,PKCS7_R_ERROR_SETTING_CIPHER);

		goto err;
@@ -526,7 +531,7 @@ PKCS7 *PKCS7_encrypt(STACK_OF(X509) *certs, BIO *in, const EVP_CIPHER *cipher, 


	err:



	BIO_free(p7bio);

	BIO_free_all(p7bio);

	PKCS7_free(p7);

	return NULL;
@@ -564,10 +569,13 @@ int PKCS7_decrypt(PKCS7 *p7, EVP_PKEY *pkey, X509 *cert, BIO *data, int flags) 
		/* Encrypt BIOs can't do BIO_gets() so add a buffer BIO */

		if(!(tmpbuf = BIO_new(BIO_f_buffer()))) {

			PKCS7err(PKCS7_F_PKCS7_DECRYPT, ERR_R_MALLOC_FAILURE);

			BIO_free_all(tmpmem);

			return 0;

		}

		if(!(bread = BIO_push(tmpbuf, tmpmem))) {

			PKCS7err(PKCS7_F_PKCS7_DECRYPT, ERR_R_MALLOC_FAILURE);

			BIO_free_all(tmpbuf);

			BIO_free_all(tmpmem);

			return 0;

		}

		ret = SMIME_text(bread, data);