Commit c82c3462 authored May 04, 2018 by Richard Levitte

In cases where we ask PEM_def_callback for minimum 0 length, accept 0 length



Fixes #4716

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6173)

parent 34e4a964

CHANGES

+4 −0

Original line number	Diff line number	Diff line
		@@ -9,6 +9,10 @@

		Changes between 1.1.0h and 1.1.1 [xx XXX xxxx]

		*) When unlocking a pass phrase protected PEM file or PKCS#8 container, we
		now allow empty (zero character) pass phrases.
		[Richard Levitte]

		*) Apply blinding to binary field modular inversion and remove patent
		pending (OPENSSL_SUN_GF2M_DIV) BN_GF2m_mod_div implementation.
		[Billy Bob Brumley]

crypto/pem/pem_lib.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -430,7 +430,7 @@ int PEM_do_header(EVP_CIPHER_INFO cipher, unsigned char data, long *plen,
		keylen = PEM_def_callback(buf, PEM_BUFSIZE, 0, u);
		else
		keylen = callback(buf, PEM_BUFSIZE, 0, u);
		if (keylen <= 0) {
		if (keylen < 0) {
		PEMerr(PEM_F_PEM_DO_HEADER, PEM_R_BAD_PASSWORD_READ);
		return 0;
		}

crypto/pem/pem_pk8.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -124,7 +124,7 @@ EVP_PKEY d2i_PKCS8PrivateKey_bio(BIO bp, EVP_PKEY *x, pem_password_cb cb,
		klen = cb(psbuf, PEM_BUFSIZE, 0, u);
		else
		klen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u);
		if (klen <= 0) {
		if (klen < 0) {
		PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_BIO, PEM_R_BAD_PASSWORD_READ);
		X509_SIG_free(p8);
		return NULL;

crypto/pem/pem_pkey.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -60,7 +60,7 @@ EVP_PKEY PEM_read_bio_PrivateKey(BIO bp, EVP_PKEY *x, pem_password_cb cb,
		klen = cb(psbuf, PEM_BUFSIZE, 0, u);
		else
		klen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u);
		if (klen <= 0) {
		if (klen < 0) {
		PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY, PEM_R_BAD_PASSWORD_READ);
		X509_SIG_free(p8);
		goto err;

crypto/pem/pvkfmt.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -686,7 +686,7 @@ static EVP_PKEY do_PVK_body(const unsigned char *in,
		inlen = cb(psbuf, PEM_BUFSIZE, 0, u);
		else
		inlen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u);
		if (inlen <= 0) {
		if (inlen < 0) {
		PEMerr(PEM_F_DO_PVK_BODY, PEM_R_BAD_PASSWORD_READ);
		goto err;
		}