The internal EVP_PKEY::pkey member is an union thus we need to check for the real key type before we can return the corresponding RSA, DSA or EC public key.
Reported-by: Selva Nair <selva.n...@gmail.com> Signed-off-by: Emmanuel Deloget <log...@free.fr> diff --git a/src/openvpn/openssl_compat.h b/src/openvpn/openssl_compat.h index 70b19aea..8b29cdaf 100644 --- a/src/openvpn/openssl_compat.h +++ b/src/openvpn/openssl_compat.h @@ -240,7 +240,7 @@ X509_OBJECT_get_type(const X509_OBJECT *obj) static inline RSA * EVP_PKEY_get0_RSA(EVP_PKEY *pkey) { - return pkey ? pkey->pkey.rsa : NULL; + return (pkey && pkey->type == EVP_PKEY_RSA) ? pkey->pkey.rsa : NULL; } #endif @@ -254,7 +254,7 @@ EVP_PKEY_get0_RSA(EVP_PKEY *pkey) static inline EC_KEY * EVP_PKEY_get0_EC_KEY(EVP_PKEY *pkey) { - return pkey ? pkey->pkey.ec : NULL; + return (pkey && pkey->type == EVP_PKEY_EC) ? pkey->pkey.ec : NULL; } #endif @@ -282,7 +282,7 @@ EVP_PKEY_id(const EVP_PKEY *pkey) static inline DSA * EVP_PKEY_get0_DSA(EVP_PKEY *pkey) { - return pkey ? pkey->pkey.dsa : NULL; + return (pkey && pkey->type == EVP_PKEY_DSA) ? pkey->pkey.dsa : NULL; } #endif -- 2.11.0 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Openvpn-devel mailing list Openvpn-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openvpn-devel