diff options
author | Hauke Mehrtens <hauke@hauke-m.de> | 2019-05-04 01:52:25 +0200 |
---|---|---|
committer | Petr Štetiar <ynezz@true.cz> | 2019-11-14 20:59:58 +0100 |
commit | 80b58a9db6a514138e979ccf06d0fe4dc52f0907 (patch) | |
tree | 0658866191081fad509033aea534091df2299a27 /package/network/services/hostapd/patches/064-0014-EAP-pwd-Check-element-x-y-coordinates-explicitly.patch | |
parent | e1854815aa4e8d85cc7a831d665a8a43d00f41c0 (diff) | |
download | upstream-80b58a9db6a514138e979ccf06d0fe4dc52f0907.tar.gz upstream-80b58a9db6a514138e979ccf06d0fe4dc52f0907.tar.bz2 upstream-80b58a9db6a514138e979ccf06d0fe4dc52f0907.zip |
hostapd: Update to version 2.8 (2019-04-21)
This also syncs the configuration files with the default configuration
files, but no extra options are activated or deactivated.
The mesh patches were partially merged into hostapd 2.8, the remaining
patches were extracted from patchwork and are now applied by OpenWrt.
The patches still have open questions which are not fixed by the author.
They were taken from this page:
https://patchwork.ozlabs.org/project/hostap/list/?series=62725&state=*
The changes in 007-mesh-apply-channel-attributes-before-running-Mesh.patch
where first applied to hostapd, but later reverted in hostapd commit
3e949655ccc5 because they caused memory leaks.
The size of the ipkgs increase a bit (between 1.3% and 2.3%):
old 2018-12-02 (2.7):
283337 wpad-basic_2018-12-02-c2c6c01b-11_mipsel_24kc.ipk
252857 wpad-mini_2018-12-02-c2c6c01b-11_mipsel_24kc.ipk
417473 wpad-openssl_2018-12-02-c2c6c01b-11_mipsel_24kc.ipk
415105 wpad-wolfssl_2018-12-02-c2c6c01b-11_mipsel_24kc.ipk
new 2019-04-21 (2.8):
288264 wpad-basic_2019-04-21-63962824-1_mipsel_24kc.ipk
256188 wpad-mini_2019-04-21-63962824-1_mipsel_24kc.ipk
427475 wpad-openssl_2019-04-21-63962824-1_mipsel_24kc.ipk
423071 wpad-wolfssl_2019-04-21-63962824-1_mipsel_24kc.ipk
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
(cherry picked from commit 8af79550e6c280717660f66032d89d21007b15d2)
Diffstat (limited to 'package/network/services/hostapd/patches/064-0014-EAP-pwd-Check-element-x-y-coordinates-explicitly.patch')
-rw-r--r-- | package/network/services/hostapd/patches/064-0014-EAP-pwd-Check-element-x-y-coordinates-explicitly.patch | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/package/network/services/hostapd/patches/064-0014-EAP-pwd-Check-element-x-y-coordinates-explicitly.patch b/package/network/services/hostapd/patches/064-0014-EAP-pwd-Check-element-x-y-coordinates-explicitly.patch deleted file mode 100644 index ab1edfaffc..0000000000 --- a/package/network/services/hostapd/patches/064-0014-EAP-pwd-Check-element-x-y-coordinates-explicitly.patch +++ /dev/null @@ -1,320 +0,0 @@ -From 16d4f1069118aa19bfce013493e1ac5783f92f1d Mon Sep 17 00:00:00 2001 -From: Jouni Malinen <jouni@codeaurora.org> -Date: Fri, 5 Apr 2019 02:12:50 +0300 -Subject: [PATCH 14/14] EAP-pwd: Check element x,y coordinates explicitly - -This adds an explicit check for 0 < x,y < prime based on RFC 5931, -2.8.5.2.2 requirement. The earlier checks might have covered this -implicitly, but it is safer to avoid any dependency on implicit checks -and specific crypto library behavior. (CVE-2019-9498 and CVE-2019-9499) - -Furthermore, this moves the EAP-pwd element and scalar parsing and -validation steps into shared helper functions so that there is no need -to maintain two separate copies of this common functionality between the -server and peer implementations. - -Signed-off-by: Jouni Malinen <jouni@codeaurora.org> ---- - src/eap_common/eap_pwd_common.c | 106 ++++++++++++++++++++++++++++++++++++++++ - src/eap_common/eap_pwd_common.h | 3 ++ - src/eap_peer/eap_pwd.c | 45 ++--------------- - src/eap_server/eap_server_pwd.c | 45 ++--------------- - 4 files changed, 117 insertions(+), 82 deletions(-) - ---- a/src/eap_common/eap_pwd_common.c -+++ b/src/eap_common/eap_pwd_common.c -@@ -427,3 +427,109 @@ int compute_keys(EAP_PWD_group *grp, con - - return 1; - } -+ -+ -+static int eap_pwd_element_coord_ok(const struct crypto_bignum *prime, -+ const u8 *buf, size_t len) -+{ -+ struct crypto_bignum *val; -+ int ok = 1; -+ -+ val = crypto_bignum_init_set(buf, len); -+ if (!val || crypto_bignum_is_zero(val) || -+ crypto_bignum_cmp(val, prime) >= 0) -+ ok = 0; -+ crypto_bignum_deinit(val, 0); -+ return ok; -+} -+ -+ -+struct crypto_ec_point * eap_pwd_get_element(EAP_PWD_group *group, -+ const u8 *buf) -+{ -+ struct crypto_ec_point *element; -+ const struct crypto_bignum *prime; -+ size_t prime_len; -+ struct crypto_bignum *cofactor = NULL; -+ -+ prime = crypto_ec_get_prime(group->group); -+ prime_len = crypto_ec_prime_len(group->group); -+ -+ /* RFC 5931, 2.8.5.2.2: 0 < x,y < p */ -+ if (!eap_pwd_element_coord_ok(prime, buf, prime_len) || -+ !eap_pwd_element_coord_ok(prime, buf + prime_len, prime_len)) { -+ wpa_printf(MSG_INFO, "EAP-pwd: Invalid coordinate in element"); -+ return NULL; -+ } -+ -+ element = crypto_ec_point_from_bin(group->group, buf); -+ if (!element) { -+ wpa_printf(MSG_INFO, "EAP-pwd: EC point from element failed"); -+ return NULL; -+ } -+ -+ /* RFC 5931, 2.8.5.2.2: on curve and not the point at infinity */ -+ if (!crypto_ec_point_is_on_curve(group->group, element) || -+ crypto_ec_point_is_at_infinity(group->group, element)) { -+ wpa_printf(MSG_INFO, "EAP-pwd: Invalid element"); -+ goto fail; -+ } -+ -+ cofactor = crypto_bignum_init(); -+ if (!cofactor || crypto_ec_cofactor(group->group, cofactor) < 0) { -+ wpa_printf(MSG_INFO, -+ "EAP-pwd: Unable to get cofactor for curve"); -+ goto fail; -+ } -+ -+ if (!crypto_bignum_is_one(cofactor)) { -+ struct crypto_ec_point *point; -+ int ok = 1; -+ -+ /* check to ensure peer's element is not in a small sub-group */ -+ point = crypto_ec_point_init(group->group); -+ if (!point || -+ crypto_ec_point_mul(group->group, element, -+ cofactor, point) != 0 || -+ crypto_ec_point_is_at_infinity(group->group, point)) -+ ok = 0; -+ crypto_ec_point_deinit(point, 0); -+ -+ if (!ok) { -+ wpa_printf(MSG_INFO, -+ "EAP-pwd: Small sub-group check on peer element failed"); -+ goto fail; -+ } -+ } -+ -+out: -+ crypto_bignum_deinit(cofactor, 0); -+ return element; -+fail: -+ crypto_ec_point_deinit(element, 0); -+ element = NULL; -+ goto out; -+} -+ -+ -+struct crypto_bignum * eap_pwd_get_scalar(EAP_PWD_group *group, const u8 *buf) -+{ -+ struct crypto_bignum *scalar; -+ const struct crypto_bignum *order; -+ size_t order_len; -+ -+ order = crypto_ec_get_order(group->group); -+ order_len = crypto_ec_order_len(group->group); -+ -+ /* RFC 5931, 2.8.5.2: 1 < scalar < r */ -+ scalar = crypto_bignum_init_set(buf, order_len); -+ if (!scalar || crypto_bignum_is_zero(scalar) || -+ crypto_bignum_is_one(scalar) || -+ crypto_bignum_cmp(scalar, order) >= 0) { -+ wpa_printf(MSG_INFO, "EAP-pwd: received scalar is invalid"); -+ crypto_bignum_deinit(scalar, 0); -+ scalar = NULL; -+ } -+ -+ return scalar; -+} ---- a/src/eap_common/eap_pwd_common.h -+++ b/src/eap_common/eap_pwd_common.h -@@ -67,5 +67,8 @@ int compute_keys(EAP_PWD_group *grp, con - struct crypto_hash * eap_pwd_h_init(void); - void eap_pwd_h_update(struct crypto_hash *hash, const u8 *data, size_t len); - void eap_pwd_h_final(struct crypto_hash *hash, u8 *digest); -+struct crypto_ec_point * eap_pwd_get_element(EAP_PWD_group *group, -+ const u8 *buf); -+struct crypto_bignum * eap_pwd_get_scalar(EAP_PWD_group *group, const u8 *buf); - - #endif /* EAP_PWD_COMMON_H */ ---- a/src/eap_peer/eap_pwd.c -+++ b/src/eap_peer/eap_pwd.c -@@ -308,7 +308,7 @@ eap_pwd_perform_commit_exchange(struct e - const struct wpabuf *reqData, - const u8 *payload, size_t payload_len) - { -- struct crypto_ec_point *K = NULL, *point = NULL; -+ struct crypto_ec_point *K = NULL; - struct crypto_bignum *mask = NULL, *cofactor = NULL; - const u8 *ptr = payload; - u8 *scalar = NULL, *element = NULL; -@@ -572,63 +572,27 @@ eap_pwd_perform_commit_exchange(struct e - /* process the request */ - data->k = crypto_bignum_init(); - K = crypto_ec_point_init(data->grp->group); -- point = crypto_ec_point_init(data->grp->group); -- if (!data->k || !K || !point) { -+ if (!data->k || !K) { - wpa_printf(MSG_INFO, "EAP-PWD (peer): peer data allocation " - "fail"); - goto fin; - } - - /* element, x then y, followed by scalar */ -- data->server_element = crypto_ec_point_from_bin(data->grp->group, ptr); -+ data->server_element = eap_pwd_get_element(data->grp, ptr); - if (!data->server_element) { - wpa_printf(MSG_INFO, "EAP-PWD (peer): setting peer element " - "fail"); - goto fin; - } - ptr += prime_len * 2; -- data->server_scalar = crypto_bignum_init_set(ptr, order_len); -+ data->server_scalar = eap_pwd_get_scalar(data->grp, ptr); - if (!data->server_scalar) { - wpa_printf(MSG_INFO, - "EAP-PWD (peer): setting peer scalar fail"); - goto fin; - } - -- /* verify received scalar */ -- if (crypto_bignum_is_zero(data->server_scalar) || -- crypto_bignum_is_one(data->server_scalar) || -- crypto_bignum_cmp(data->server_scalar, -- crypto_ec_get_order(data->grp->group)) >= 0) { -- wpa_printf(MSG_INFO, -- "EAP-PWD (peer): received scalar is invalid"); -- goto fin; -- } -- -- /* verify received element */ -- if (!crypto_ec_point_is_on_curve(data->grp->group, -- data->server_element) || -- crypto_ec_point_is_at_infinity(data->grp->group, -- data->server_element)) { -- wpa_printf(MSG_INFO, -- "EAP-PWD (peer): received element is invalid"); -- goto fin; -- } -- -- /* check to ensure server's element is not in a small sub-group */ -- if (!crypto_bignum_is_one(cofactor)) { -- if (crypto_ec_point_mul(data->grp->group, data->server_element, -- cofactor, point) < 0) { -- wpa_printf(MSG_INFO, "EAP-PWD (peer): cannot multiply " -- "server element by order!\n"); -- goto fin; -- } -- if (crypto_ec_point_is_at_infinity(data->grp->group, point)) { -- wpa_printf(MSG_INFO, "EAP-PWD (peer): server element " -- "is at infinity!\n"); -- goto fin; -- } -- } -- - /* compute the shared key, k */ - if (crypto_ec_point_mul(data->grp->group, data->grp->pwe, - data->server_scalar, K) < 0 || -@@ -702,7 +666,6 @@ fin: - crypto_bignum_deinit(mask, 1); - crypto_bignum_deinit(cofactor, 1); - crypto_ec_point_deinit(K, 1); -- crypto_ec_point_deinit(point, 1); - if (data->outbuf == NULL) - eap_pwd_state(data, FAILURE); - else ---- a/src/eap_server/eap_server_pwd.c -+++ b/src/eap_server/eap_server_pwd.c -@@ -669,7 +669,7 @@ eap_pwd_process_commit_resp(struct eap_s - { - const u8 *ptr; - struct crypto_bignum *cofactor = NULL; -- struct crypto_ec_point *K = NULL, *point = NULL; -+ struct crypto_ec_point *K = NULL; - int res = 0; - size_t prime_len, order_len; - -@@ -688,9 +688,8 @@ eap_pwd_process_commit_resp(struct eap_s - - data->k = crypto_bignum_init(); - cofactor = crypto_bignum_init(); -- point = crypto_ec_point_init(data->grp->group); - K = crypto_ec_point_init(data->grp->group); -- if (!data->k || !cofactor || !point || !K) { -+ if (!data->k || !cofactor || !K) { - wpa_printf(MSG_INFO, "EAP-PWD (server): peer data allocation " - "fail"); - goto fin; -@@ -704,55 +703,20 @@ eap_pwd_process_commit_resp(struct eap_s - - /* element, x then y, followed by scalar */ - ptr = payload; -- data->peer_element = crypto_ec_point_from_bin(data->grp->group, ptr); -+ data->peer_element = eap_pwd_get_element(data->grp, ptr); - if (!data->peer_element) { - wpa_printf(MSG_INFO, "EAP-PWD (server): setting peer element " - "fail"); - goto fin; - } - ptr += prime_len * 2; -- data->peer_scalar = crypto_bignum_init_set(ptr, order_len); -+ data->peer_scalar = eap_pwd_get_scalar(data->grp, ptr); - if (!data->peer_scalar) { - wpa_printf(MSG_INFO, "EAP-PWD (server): peer data allocation " - "fail"); - goto fin; - } - -- /* verify received scalar */ -- if (crypto_bignum_is_zero(data->peer_scalar) || -- crypto_bignum_is_one(data->peer_scalar) || -- crypto_bignum_cmp(data->peer_scalar, -- crypto_ec_get_order(data->grp->group)) >= 0) { -- wpa_printf(MSG_INFO, -- "EAP-PWD (server): received scalar is invalid"); -- goto fin; -- } -- -- /* verify received element */ -- if (!crypto_ec_point_is_on_curve(data->grp->group, -- data->peer_element) || -- crypto_ec_point_is_at_infinity(data->grp->group, -- data->peer_element)) { -- wpa_printf(MSG_INFO, -- "EAP-PWD (server): received element is invalid"); -- goto fin; -- } -- -- /* check to ensure peer's element is not in a small sub-group */ -- if (!crypto_bignum_is_one(cofactor)) { -- if (crypto_ec_point_mul(data->grp->group, data->peer_element, -- cofactor, point) != 0) { -- wpa_printf(MSG_INFO, "EAP-PWD (server): cannot " -- "multiply peer element by order"); -- goto fin; -- } -- if (crypto_ec_point_is_at_infinity(data->grp->group, point)) { -- wpa_printf(MSG_INFO, "EAP-PWD (server): peer element " -- "is at infinity!\n"); -- goto fin; -- } -- } -- - /* detect reflection attacks */ - if (crypto_bignum_cmp(data->my_scalar, data->peer_scalar) == 0 || - crypto_ec_point_cmp(data->grp->group, data->my_element, -@@ -804,7 +768,6 @@ eap_pwd_process_commit_resp(struct eap_s - - fin: - crypto_ec_point_deinit(K, 1); -- crypto_ec_point_deinit(point, 1); - crypto_bignum_deinit(cofactor, 1); - - if (res) |