|
 |
45dc05 |
From 66ebbaac74a1f6f1960ea1049eb8e75ebbdf9782 Mon Sep 17 00:00:00 2001
|
|
|
45dc05 |
From: Michal Trojnara <Michal.Trojnara@stunnel.org>
|
|
|
45dc05 |
Date: Fri, 28 Feb 2020 05:42:47 +0100
|
|
|
45dc05 |
Subject: [PATCH] Revert "fix use-after-free on PKCS11_pkey_meths."
|
|
|
45dc05 |
|
|
|
45dc05 |
This reverts commit e64496a198d4d2eb0310a22dc21be8b81367d319.
|
|
|
45dc05 |
|
|
|
45dc05 |
Upstream-Status: Backport [https://github.com/OpenSC/libp11/commit/66ebbaac74a1f6f1960ea1049eb8e75ebbdf9782]
|
|
|
45dc05 |
---
|
|
|
45dc05 |
src/p11_pkey.c | 10 ++++++----
|
|
|
45dc05 |
1 file changed, 6 insertions(+), 4 deletions(-)
|
|
|
45dc05 |
|
|
|
45dc05 |
diff --git a/src/p11_pkey.c b/src/p11_pkey.c
|
|
|
45dc05 |
index 8df45abd..4ed98f65 100644
|
|
|
45dc05 |
--- a/src/p11_pkey.c
|
|
|
45dc05 |
+++ b/src/p11_pkey.c
|
|
|
45dc05 |
@@ -673,8 +673,8 @@ int PKCS11_pkey_meths(ENGINE *e, EVP_PKEY_METHOD **pmeth,
|
|
|
45dc05 |
EVP_PKEY_EC,
|
|
|
45dc05 |
0
|
|
|
45dc05 |
};
|
|
|
45dc05 |
- EVP_PKEY_METHOD *pkey_method_rsa = NULL;
|
|
|
45dc05 |
- EVP_PKEY_METHOD *pkey_method_ec = NULL;
|
|
|
45dc05 |
+ static EVP_PKEY_METHOD *pkey_method_rsa = NULL;
|
|
|
45dc05 |
+ static EVP_PKEY_METHOD *pkey_method_ec = NULL;
|
|
|
45dc05 |
|
|
|
45dc05 |
(void)e; /* squash the unused parameter warning */
|
|
|
45dc05 |
/* all PKCS#11 engines currently share the same pkey_meths */
|
|
|
45dc05 |
@@ -687,14 +687,16 @@ int PKCS11_pkey_meths(ENGINE *e, EVP_PKEY_METHOD **pmeth,
|
|
|
45dc05 |
/* get the EVP_PKEY_METHOD */
|
|
|
45dc05 |
switch (nid) {
|
|
|
45dc05 |
case EVP_PKEY_RSA:
|
|
|
45dc05 |
- pkey_method_rsa = pkcs11_pkey_method_rsa();
|
|
|
45dc05 |
+ if (!pkey_method_rsa)
|
|
|
45dc05 |
+ pkey_method_rsa = pkcs11_pkey_method_rsa();
|
|
|
45dc05 |
if (pkey_method_rsa == NULL)
|
|
|
45dc05 |
return 0;
|
|
|
45dc05 |
*pmeth = pkey_method_rsa;
|
|
|
45dc05 |
return 1; /* success */
|
|
|
45dc05 |
#ifndef OPENSSL_NO_EC
|
|
|
45dc05 |
case EVP_PKEY_EC:
|
|
|
45dc05 |
- pkey_method_ec = pkcs11_pkey_method_ec();
|
|
|
45dc05 |
+ if (!pkey_method_ec)
|
|
|
45dc05 |
+ pkey_method_ec = pkcs11_pkey_method_ec();
|
|
|
45dc05 |
if (pkey_method_ec == NULL)
|
|
|
45dc05 |
return 0;
|
|
|
45dc05 |
*pmeth = pkey_method_ec;
|
|
|
45dc05 |
|
|
|
45dc05 |
From 5aa56b4ac45655aab20bd49bb918e649875b0f4d Mon Sep 17 00:00:00 2001
|
|
|
45dc05 |
From: Michal Trojnara <Michal.Trojnara@stunnel.org>
|
|
|
45dc05 |
Date: Fri, 28 Feb 2020 07:09:42 +0100
|
|
|
45dc05 |
Subject: [PATCH] Disable EVP_PKEY_FLAG_DYNAMIC
|
|
|
45dc05 |
|
|
|
45dc05 |
Fixes #328
|
|
|
45dc05 |
|
|
|
45dc05 |
Upstream-Status: Backport [https://github.com/OpenSC/libp11/commit/5aa56b4ac45655aab20bd49bb918e649875b0f4d]
|
|
|
45dc05 |
---
|
|
|
45dc05 |
src/p11_pkey.c | 14 +++++++++++++-
|
|
|
45dc05 |
1 file changed, 13 insertions(+), 1 deletion(-)
|
|
|
45dc05 |
|
|
|
45dc05 |
diff --git a/src/p11_pkey.c b/src/p11_pkey.c
|
|
|
45dc05 |
index 4ed98f65..4e0956bf 100644
|
|
|
45dc05 |
--- a/src/p11_pkey.c
|
|
|
45dc05 |
+++ b/src/p11_pkey.c
|
|
|
45dc05 |
@@ -36,7 +36,6 @@ static int (*orig_pkey_ec_sign) (EVP_PKEY_CTX *ctx,
|
|
|
45dc05 |
const unsigned char *tbs, size_t tbslen);
|
|
|
45dc05 |
#endif /* OPENSSL_NO_EC */
|
|
|
45dc05 |
|
|
|
45dc05 |
-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
|
|
|
45dc05 |
struct evp_pkey_method_st {
|
|
|
45dc05 |
int pkey_id;
|
|
|
45dc05 |
int flags;
|
|
|
45dc05 |
@@ -75,6 +74,9 @@ struct evp_pkey_method_st {
|
|
|
45dc05 |
int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
|
|
|
45dc05 |
int (*ctrl_str) (EVP_PKEY_CTX *ctx, const char *type, const char *value);
|
|
|
45dc05 |
} /* EVP_PKEY_METHOD */ ;
|
|
|
45dc05 |
+
|
|
|
45dc05 |
+#if OPENSSL_VERSION_NUMBER >= 0x10000000L
|
|
|
45dc05 |
+#define EVP_PKEY_FLAG_DYNAMIC 1
|
|
|
45dc05 |
#endif
|
|
|
45dc05 |
|
|
|
45dc05 |
#if OPENSSL_VERSION_NUMBER < 0x10002000L || defined(LIBRESSL_VERSION_NUMBER)
|
|
|
45dc05 |
@@ -516,6 +518,11 @@ static EVP_PKEY_METHOD *pkcs11_pkey_method_rsa()
|
|
|
45dc05 |
new_meth = EVP_PKEY_meth_new(EVP_PKEY_RSA,
|
|
|
45dc05 |
EVP_PKEY_FLAG_AUTOARGLEN);
|
|
|
45dc05 |
|
|
|
45dc05 |
+#ifdef EVP_PKEY_FLAG_DYNAMIC
|
|
|
45dc05 |
+ /* do not allow OpenSSL to free this object */
|
|
|
45dc05 |
+ new_meth->flags &= ~EVP_PKEY_FLAG_DYNAMIC;
|
|
|
45dc05 |
+#endif
|
|
|
45dc05 |
+
|
|
|
45dc05 |
EVP_PKEY_meth_copy(new_meth, orig_meth);
|
|
|
45dc05 |
|
|
|
45dc05 |
EVP_PKEY_meth_set_sign(new_meth,
|
|
|
45dc05 |
@@ -655,6 +662,11 @@ static EVP_PKEY_METHOD *pkcs11_pkey_method_ec()
|
|
|
45dc05 |
new_meth = EVP_PKEY_meth_new(EVP_PKEY_EC,
|
|
|
45dc05 |
EVP_PKEY_FLAG_AUTOARGLEN);
|
|
|
45dc05 |
|
|
|
45dc05 |
+#ifdef EVP_PKEY_FLAG_DYNAMIC
|
|
|
45dc05 |
+ /* do not allow OpenSSL to free this object */
|
|
|
45dc05 |
+ new_meth->flags &= ~EVP_PKEY_FLAG_DYNAMIC;
|
|
|
45dc05 |
+#endif
|
|
|
45dc05 |
+
|
|
|
45dc05 |
EVP_PKEY_meth_copy(new_meth, orig_meth);
|
|
|
45dc05 |
|
|
|
45dc05 |
EVP_PKEY_meth_set_sign(new_meth,
|