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[bug#28869] [PATCH] gnu: wpa-supplicant: Fix "KRACK" key reinstallation
|
From: |
Leo Famulari |
|
Subject: |
[bug#28869] [PATCH] gnu: wpa-supplicant: Fix "KRACK" key reinstallation attacks [security fixes]. |
|
Date: |
Mon, 16 Oct 2017 14:20:00 -0400 |
Fixes CVE-2017-{13078,13079,13080,13081,13082,13087,13088}.
See these announcements for more information:
https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt
https://www.krackattacks.com/
* gnu/packages/patches/wpa-supplicant-CVE-2017-13082.patch,
gnu/packages/patches/wpa-supplicant-fix-key-reuse.patch,
gnu/packages/patches/wpa-supplicant-fix-nonce-reuse.patch
gnu/packages/patches/wpa-supplicant-fix-zeroed-keys.patch,
gnu/packages/patches/wpa-supplicant-krack-followups.patch: New files.
* gnu/packages/admin.scm (wpa-supplicant-minimal)[source]: Use them.
* gnu/local.mk (dist_patch_DATA): Add them.
---
gnu/local.mk | 5 +
gnu/packages/admin.scm | 5 +
.../patches/wpa-supplicant-CVE-2017-13082.patch | 182 +++++++++
.../patches/wpa-supplicant-fix-key-reuse.patch | 448 +++++++++++++++++++++
.../patches/wpa-supplicant-fix-nonce-reuse.patch | 72 ++++
.../patches/wpa-supplicant-fix-zeroed-keys.patch | 86 ++++
.../patches/wpa-supplicant-krack-followups.patch | 275 +++++++++++++
7 files changed, 1073 insertions(+)
create mode 100644 gnu/packages/patches/wpa-supplicant-CVE-2017-13082.patch
create mode 100644 gnu/packages/patches/wpa-supplicant-fix-key-reuse.patch
create mode 100644 gnu/packages/patches/wpa-supplicant-fix-nonce-reuse.patch
create mode 100644 gnu/packages/patches/wpa-supplicant-fix-zeroed-keys.patch
create mode 100644 gnu/packages/patches/wpa-supplicant-krack-followups.patch
diff --git a/gnu/local.mk b/gnu/local.mk
index 9defe9d58..f648dda14 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1104,6 +1104,11 @@ dist_patch_DATA =
\
%D%/packages/patches/wordnet-CVE-2008-2149.patch \
%D%/packages/patches/wordnet-CVE-2008-3908-pt1.patch \
%D%/packages/patches/wordnet-CVE-2008-3908-pt2.patch \
+ %D%/packages/patches/wpa-supplicant-CVE-2017-13082.patch \
+ %D%/packages/patches/wpa-supplicant-fix-key-reuse.patch \
+ %D%/packages/patches/wpa-supplicant-fix-zeroed-keys.patch \
+ %D%/packages/patches/wpa-supplicant-fix-nonce-reuse.patch \
+ %D%/packages/patches/wpa-supplicant-krack-followups.patch \
%D%/packages/patches/xcb-proto-python3-print.patch \
%D%/packages/patches/xcb-proto-python3-whitespace.patch \
%D%/packages/patches/xdotool-fix-makefile.patch \
diff --git a/gnu/packages/admin.scm b/gnu/packages/admin.scm
index bc8dc48f0..23024fc36 100644
--- a/gnu/packages/admin.scm
+++ b/gnu/packages/admin.scm
@@ -902,6 +902,11 @@ commands and their arguments.")
"http://w1.fi/releases/wpa_supplicant-";
version
".tar.gz"))
+ (patches (search-patches "wpa-supplicant-CVE-2017-13082.patch"
+ "wpa-supplicant-fix-key-reuse.patch"
+ "wpa-supplicant-fix-zeroed-keys.patch"
+ "wpa-supplicant-fix-nonce-reuse.patch"
+ "wpa-supplicant-krack-followups.patch"))
(sha256
(base32
"0l0l5gz3d5j9bqjsbjlfcv4w4jwndllp9fmyai4x9kg6qhs6v4xl"))))
diff --git a/gnu/packages/patches/wpa-supplicant-CVE-2017-13082.patch
b/gnu/packages/patches/wpa-supplicant-CVE-2017-13082.patch
new file mode 100644
index 000000000..371456d15
--- /dev/null
+++ b/gnu/packages/patches/wpa-supplicant-CVE-2017-13082.patch
@@ -0,0 +1,182 @@
+Fix CVE-2017-13082:
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13082
+https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt
+
+Patch copied from upstream:
+https://w1.fi/security/2017-1/rebased-v2.6-0001-hostapd-Avoid-key-reinstallation-in-FT-handshake.patch
+
+From cf4cab804c7afd5c45505528a8d16e46163243a2 Mon Sep 17 00:00:00 2001
+From: Mathy Vanhoef <address@hidden>
+Date: Fri, 14 Jul 2017 15:15:35 +0200
+Subject: [PATCH 1/8] hostapd: Avoid key reinstallation in FT handshake
+
+Do not reinstall TK to the driver during Reassociation Response frame
+processing if the first attempt of setting the TK succeeded. This avoids
+issues related to clearing the TX/RX PN that could result in reusing
+same PN values for transmitted frames (e.g., due to CCM nonce reuse and
+also hitting replay protection on the receiver) and accepting replayed
+frames on RX side.
+
+This issue was introduced by the commit
+0e84c25434e6a1f283c7b4e62e483729085b78d2 ('FT: Fix PTK configuration in
+authenticator') which allowed wpa_ft_install_ptk() to be called multiple
+times with the same PTK. While the second configuration attempt is
+needed with some drivers, it must be done only if the first attempt
+failed.
+
+Signed-off-by: Mathy Vanhoef <address@hidden>
+---
+ src/ap/ieee802_11.c | 16 +++++++++++++---
+ src/ap/wpa_auth.c | 11 +++++++++++
+ src/ap/wpa_auth.h | 3 ++-
+ src/ap/wpa_auth_ft.c | 10 ++++++++++
+ src/ap/wpa_auth_i.h | 1 +
+ 5 files changed, 37 insertions(+), 4 deletions(-)
+
+diff --git a/src/ap/ieee802_11.c b/src/ap/ieee802_11.c
+index 4e04169..333035f 100644
+--- a/src/ap/ieee802_11.c
++++ b/src/ap/ieee802_11.c
+@@ -1841,6 +1841,7 @@ static int add_associated_sta(struct hostapd_data *hapd,
+ {
+ struct ieee80211_ht_capabilities ht_cap;
+ struct ieee80211_vht_capabilities vht_cap;
++ int set = 1;
+
+ /*
+ * Remove the STA entry to ensure the STA PS state gets cleared and
+@@ -1848,9 +1849,18 @@ static int add_associated_sta(struct hostapd_data *hapd,
+ * FT-over-the-DS, where a station re-associates back to the same AP but
+ * skips the authentication flow, or if working with a driver that
+ * does not support full AP client state.
++ *
++ * Skip this if the STA has already completed FT reassociation and the
++ * TK has been configured since the TX/RX PN must not be reset to 0 for
++ * the same key.
+ */
+- if (!sta->added_unassoc)
++ if (!sta->added_unassoc &&
++ (!(sta->flags & WLAN_STA_AUTHORIZED) ||
++ !wpa_auth_sta_ft_tk_already_set(sta->wpa_sm))) {
+ hostapd_drv_sta_remove(hapd, sta->addr);
++ wpa_auth_sm_event(sta->wpa_sm, WPA_DRV_STA_REMOVED);
++ set = 0;
++ }
+
+ #ifdef CONFIG_IEEE80211N
+ if (sta->flags & WLAN_STA_HT)
+@@ -1873,11 +1883,11 @@ static int add_associated_sta(struct hostapd_data
*hapd,
+ sta->flags & WLAN_STA_VHT ? &vht_cap : NULL,
+ sta->flags | WLAN_STA_ASSOC, sta->qosinfo,
+ sta->vht_opmode, sta->p2p_ie ? 1 : 0,
+- sta->added_unassoc)) {
++ set)) {
+ hostapd_logger(hapd, sta->addr,
+ HOSTAPD_MODULE_IEEE80211, HOSTAPD_LEVEL_NOTICE,
+ "Could not %s STA to kernel driver",
+- sta->added_unassoc ? "set" : "add");
++ set ? "set" : "add");
+
+ if (sta->added_unassoc) {
+ hostapd_drv_sta_remove(hapd, sta->addr);
+diff --git a/src/ap/wpa_auth.c b/src/ap/wpa_auth.c
+index 3587086..707971d 100644
+--- a/src/ap/wpa_auth.c
++++ b/src/ap/wpa_auth.c
+@@ -1745,6 +1745,9 @@ int wpa_auth_sm_event(struct wpa_state_machine *sm, enum
wpa_event event)
+ #else /* CONFIG_IEEE80211R */
+ break;
+ #endif /* CONFIG_IEEE80211R */
++ case WPA_DRV_STA_REMOVED:
++ sm->tk_already_set = FALSE;
++ return 0;
+ }
+
+ #ifdef CONFIG_IEEE80211R
+@@ -3250,6 +3253,14 @@ int wpa_auth_sta_wpa_version(struct wpa_state_machine
*sm)
+ }
+
+
++int wpa_auth_sta_ft_tk_already_set(struct wpa_state_machine *sm)
++{
++ if (!sm || !wpa_key_mgmt_ft(sm->wpa_key_mgmt))
++ return 0;
++ return sm->tk_already_set;
++}
++
++
+ int wpa_auth_sta_clear_pmksa(struct wpa_state_machine *sm,
+ struct rsn_pmksa_cache_entry *entry)
+ {
+diff --git a/src/ap/wpa_auth.h b/src/ap/wpa_auth.h
+index 0de8d97..97461b0 100644
+--- a/src/ap/wpa_auth.h
++++ b/src/ap/wpa_auth.h
+@@ -267,7 +267,7 @@ void wpa_receive(struct wpa_authenticator *wpa_auth,
+ u8 *data, size_t data_len);
+ enum wpa_event {
+ WPA_AUTH, WPA_ASSOC, WPA_DISASSOC, WPA_DEAUTH, WPA_REAUTH,
+- WPA_REAUTH_EAPOL, WPA_ASSOC_FT
++ WPA_REAUTH_EAPOL, WPA_ASSOC_FT, WPA_DRV_STA_REMOVED
+ };
+ void wpa_remove_ptk(struct wpa_state_machine *sm);
+ int wpa_auth_sm_event(struct wpa_state_machine *sm, enum wpa_event event);
+@@ -280,6 +280,7 @@ int wpa_auth_pairwise_set(struct wpa_state_machine *sm);
+ int wpa_auth_get_pairwise(struct wpa_state_machine *sm);
+ int wpa_auth_sta_key_mgmt(struct wpa_state_machine *sm);
+ int wpa_auth_sta_wpa_version(struct wpa_state_machine *sm);
++int wpa_auth_sta_ft_tk_already_set(struct wpa_state_machine *sm);
+ int wpa_auth_sta_clear_pmksa(struct wpa_state_machine *sm,
+ struct rsn_pmksa_cache_entry *entry);
+ struct rsn_pmksa_cache_entry *
+diff --git a/src/ap/wpa_auth_ft.c b/src/ap/wpa_auth_ft.c
+index 42242a5..e63b99a 100644
+--- a/src/ap/wpa_auth_ft.c
++++ b/src/ap/wpa_auth_ft.c
+@@ -780,6 +780,14 @@ void wpa_ft_install_ptk(struct wpa_state_machine *sm)
+ return;
+ }
+
++ if (sm->tk_already_set) {
++ /* Must avoid TK reconfiguration to prevent clearing of TX/RX
++ * PN in the driver */
++ wpa_printf(MSG_DEBUG,
++ "FT: Do not re-install same PTK to the driver");
++ return;
++ }
++
+ /* FIX: add STA entry to kernel/driver here? The set_key will fail
+ * most likely without this.. At the moment, STA entry is added only
+ * after association has been completed. This function will be called
+@@ -792,6 +800,7 @@ void wpa_ft_install_ptk(struct wpa_state_machine *sm)
+
+ /* FIX: MLME-SetProtection.Request(TA, Tx_Rx) */
+ sm->pairwise_set = TRUE;
++ sm->tk_already_set = TRUE;
+ }
+
+
+@@ -898,6 +907,7 @@ static int wpa_ft_process_auth_req(struct
wpa_state_machine *sm,
+
+ sm->pairwise = pairwise;
+ sm->PTK_valid = TRUE;
++ sm->tk_already_set = FALSE;
+ wpa_ft_install_ptk(sm);
+
+ buflen = 2 + sizeof(struct rsn_mdie) + 2 + sizeof(struct rsn_ftie) +
+diff --git a/src/ap/wpa_auth_i.h b/src/ap/wpa_auth_i.h
+index 72b7eb3..7fd8f05 100644
+--- a/src/ap/wpa_auth_i.h
++++ b/src/ap/wpa_auth_i.h
+@@ -65,6 +65,7 @@ struct wpa_state_machine {
+ struct wpa_ptk PTK;
+ Boolean PTK_valid;
+ Boolean pairwise_set;
++ Boolean tk_already_set;
+ int keycount;
+ Boolean Pair;
+ struct wpa_key_replay_counter {
+--
+2.7.4
+
diff --git a/gnu/packages/patches/wpa-supplicant-fix-key-reuse.patch
b/gnu/packages/patches/wpa-supplicant-fix-key-reuse.patch
new file mode 100644
index 000000000..20d7c3766
--- /dev/null
+++ b/gnu/packages/patches/wpa-supplicant-fix-key-reuse.patch
@@ -0,0 +1,448 @@
+Fix CVE-2017-{13078,13079,13080,13081,13087,13088}:
+
+https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13078
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13079
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13080
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13081
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13087
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13088
+
+These two patches are copied from upstream:
+https://w1.fi/security/2017-1/rebased-v2.6-0002-Prevent-reinstallation-of-an-already-in-use-group-ke.patch
+https://w1.fi/security/2017-1/rebased-v2.6-0003-Extend-protection-of-GTK-IGTK-reinstallation-of-WNM-.patch
+
+From 927f891007c402fefd1ff384645b3f07597c3ede Mon Sep 17 00:00:00 2001
+From: Mathy Vanhoef <address@hidden>
+Date: Wed, 12 Jul 2017 16:03:24 +0200
+Subject: [PATCH 2/8] Prevent reinstallation of an already in-use group key
+
+Track the current GTK and IGTK that is in use and when receiving a
+(possibly retransmitted) Group Message 1 or WNM-Sleep Mode Response, do
+not install the given key if it is already in use. This prevents an
+attacker from trying to trick the client into resetting or lowering the
+sequence counter associated to the group key.
+
+Signed-off-by: Mathy Vanhoef <address@hidden>
+---
+ src/common/wpa_common.h | 11 +++++
+ src/rsn_supp/wpa.c | 116 ++++++++++++++++++++++++++++++------------------
+ src/rsn_supp/wpa_i.h | 4 ++
+ 3 files changed, 87 insertions(+), 44 deletions(-)
+
+diff --git a/src/common/wpa_common.h b/src/common/wpa_common.h
+index af1d0f0..d200285 100644
+--- a/src/common/wpa_common.h
++++ b/src/common/wpa_common.h
+@@ -217,6 +217,17 @@ struct wpa_ptk {
+ size_t tk_len;
+ };
+
++struct wpa_gtk {
++ u8 gtk[WPA_GTK_MAX_LEN];
++ size_t gtk_len;
++};
++
++#ifdef CONFIG_IEEE80211W
++struct wpa_igtk {
++ u8 igtk[WPA_IGTK_MAX_LEN];
++ size_t igtk_len;
++};
++#endif /* CONFIG_IEEE80211W */
+
+ /* WPA IE version 1
+ * 00-50-f2:1 (OUI:OUI type)
+diff --git a/src/rsn_supp/wpa.c b/src/rsn_supp/wpa.c
+index 3c47879..95bd7be 100644
+--- a/src/rsn_supp/wpa.c
++++ b/src/rsn_supp/wpa.c
+@@ -714,6 +714,15 @@ static int wpa_supplicant_install_gtk(struct wpa_sm *sm,
+ const u8 *_gtk = gd->gtk;
+ u8 gtk_buf[32];
+
++ /* Detect possible key reinstallation */
++ if (sm->gtk.gtk_len == (size_t) gd->gtk_len &&
++ os_memcmp(sm->gtk.gtk, gd->gtk, sm->gtk.gtk_len) == 0) {
++ wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
++ "WPA: Not reinstalling already in-use GTK to the driver
(keyidx=%d tx=%d len=%d)",
++ gd->keyidx, gd->tx, gd->gtk_len);
++ return 0;
++ }
++
+ wpa_hexdump_key(MSG_DEBUG, "WPA: Group Key", gd->gtk, gd->gtk_len);
+ wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
+ "WPA: Installing GTK to the driver (keyidx=%d tx=%d len=%d)",
+@@ -748,6 +757,9 @@ static int wpa_supplicant_install_gtk(struct wpa_sm *sm,
+ }
+ os_memset(gtk_buf, 0, sizeof(gtk_buf));
+
++ sm->gtk.gtk_len = gd->gtk_len;
++ os_memcpy(sm->gtk.gtk, gd->gtk, sm->gtk.gtk_len);
++
+ return 0;
+ }
+
+@@ -854,6 +866,48 @@ static int wpa_supplicant_pairwise_gtk(struct wpa_sm *sm,
+ }
+
+
++#ifdef CONFIG_IEEE80211W
++static int wpa_supplicant_install_igtk(struct wpa_sm *sm,
++ const struct wpa_igtk_kde *igtk)
++{
++ size_t len = wpa_cipher_key_len(sm->mgmt_group_cipher);
++ u16 keyidx = WPA_GET_LE16(igtk->keyid);
++
++ /* Detect possible key reinstallation */
++ if (sm->igtk.igtk_len == len &&
++ os_memcmp(sm->igtk.igtk, igtk->igtk, sm->igtk.igtk_len) == 0) {
++ wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
++ "WPA: Not reinstalling already in-use IGTK to the
driver (keyidx=%d)",
++ keyidx);
++ return 0;
++ }
++
++ wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
++ "WPA: IGTK keyid %d pn %02x%02x%02x%02x%02x%02x",
++ keyidx, MAC2STR(igtk->pn));
++ wpa_hexdump_key(MSG_DEBUG, "WPA: IGTK", igtk->igtk, len);
++ if (keyidx > 4095) {
++ wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
++ "WPA: Invalid IGTK KeyID %d", keyidx);
++ return -1;
++ }
++ if (wpa_sm_set_key(sm, wpa_cipher_to_alg(sm->mgmt_group_cipher),
++ broadcast_ether_addr,
++ keyidx, 0, igtk->pn, sizeof(igtk->pn),
++ igtk->igtk, len) < 0) {
++ wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
++ "WPA: Failed to configure IGTK to the driver");
++ return -1;
++ }
++
++ sm->igtk.igtk_len = len;
++ os_memcpy(sm->igtk.igtk, igtk->igtk, sm->igtk.igtk_len);
++
++ return 0;
++}
++#endif /* CONFIG_IEEE80211W */
++
++
+ static int ieee80211w_set_keys(struct wpa_sm *sm,
+ struct wpa_eapol_ie_parse *ie)
+ {
+@@ -864,30 +918,14 @@ static int ieee80211w_set_keys(struct wpa_sm *sm,
+ if (ie->igtk) {
+ size_t len;
+ const struct wpa_igtk_kde *igtk;
+- u16 keyidx;
++
+ len = wpa_cipher_key_len(sm->mgmt_group_cipher);
+ if (ie->igtk_len != WPA_IGTK_KDE_PREFIX_LEN + len)
+ return -1;
++
+ igtk = (const struct wpa_igtk_kde *) ie->igtk;
+- keyidx = WPA_GET_LE16(igtk->keyid);
+- wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, "WPA: IGTK keyid %d "
+- "pn %02x%02x%02x%02x%02x%02x",
+- keyidx, MAC2STR(igtk->pn));
+- wpa_hexdump_key(MSG_DEBUG, "WPA: IGTK",
+- igtk->igtk, len);
+- if (keyidx > 4095) {
+- wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
+- "WPA: Invalid IGTK KeyID %d", keyidx);
+- return -1;
+- }
+- if (wpa_sm_set_key(sm, wpa_cipher_to_alg(sm->mgmt_group_cipher),
+- broadcast_ether_addr,
+- keyidx, 0, igtk->pn, sizeof(igtk->pn),
+- igtk->igtk, len) < 0) {
+- wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
+- "WPA: Failed to configure IGTK to the driver");
++ if (wpa_supplicant_install_igtk(sm, igtk) < 0)
+ return -1;
+- }
+ }
+
+ return 0;
+@@ -2307,7 +2345,7 @@ void wpa_sm_deinit(struct wpa_sm *sm)
+ */
+ void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid)
+ {
+- int clear_ptk = 1;
++ int clear_keys = 1;
+
+ if (sm == NULL)
+ return;
+@@ -2333,11 +2371,11 @@ void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8
*bssid)
+ /* Prepare for the next transition */
+ wpa_ft_prepare_auth_request(sm, NULL);
+
+- clear_ptk = 0;
++ clear_keys = 0;
+ }
+ #endif /* CONFIG_IEEE80211R */
+
+- if (clear_ptk) {
++ if (clear_keys) {
+ /*
+ * IEEE 802.11, 8.4.10: Delete PTK SA on (re)association if
+ * this is not part of a Fast BSS Transition.
+@@ -2347,6 +2385,10 @@ void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8
*bssid)
+ os_memset(&sm->ptk, 0, sizeof(sm->ptk));
+ sm->tptk_set = 0;
+ os_memset(&sm->tptk, 0, sizeof(sm->tptk));
++ os_memset(&sm->gtk, 0, sizeof(sm->gtk));
++#ifdef CONFIG_IEEE80211W
++ os_memset(&sm->igtk, 0, sizeof(sm->igtk));
++#endif /* CONFIG_IEEE80211W */
+ }
+
+ #ifdef CONFIG_TDLS
+@@ -2877,6 +2919,10 @@ void wpa_sm_drop_sa(struct wpa_sm *sm)
+ os_memset(sm->pmk, 0, sizeof(sm->pmk));
+ os_memset(&sm->ptk, 0, sizeof(sm->ptk));
+ os_memset(&sm->tptk, 0, sizeof(sm->tptk));
++ os_memset(&sm->gtk, 0, sizeof(sm->gtk));
++#ifdef CONFIG_IEEE80211W
++ os_memset(&sm->igtk, 0, sizeof(sm->igtk));
++#endif /* CONFIG_IEEE80211W */
+ #ifdef CONFIG_IEEE80211R
+ os_memset(sm->xxkey, 0, sizeof(sm->xxkey));
+ os_memset(sm->pmk_r0, 0, sizeof(sm->pmk_r0));
+@@ -2949,29 +2995,11 @@ int wpa_wnmsleep_install_key(struct wpa_sm *sm, u8
subelem_id, u8 *buf)
+ os_memset(&gd, 0, sizeof(gd));
+ #ifdef CONFIG_IEEE80211W
+ } else if (subelem_id == WNM_SLEEP_SUBELEM_IGTK) {
+- struct wpa_igtk_kde igd;
+- u16 keyidx;
+-
+- os_memset(&igd, 0, sizeof(igd));
+- keylen = wpa_cipher_key_len(sm->mgmt_group_cipher);
+- os_memcpy(igd.keyid, buf + 2, 2);
+- os_memcpy(igd.pn, buf + 4, 6);
+-
+- keyidx = WPA_GET_LE16(igd.keyid);
+- os_memcpy(igd.igtk, buf + 10, keylen);
+-
+- wpa_hexdump_key(MSG_DEBUG, "Install IGTK (WNM SLEEP)",
+- igd.igtk, keylen);
+- if (wpa_sm_set_key(sm, wpa_cipher_to_alg(sm->mgmt_group_cipher),
+- broadcast_ether_addr,
+- keyidx, 0, igd.pn, sizeof(igd.pn),
+- igd.igtk, keylen) < 0) {
+- wpa_printf(MSG_DEBUG, "Failed to install the IGTK in "
+- "WNM mode");
+- os_memset(&igd, 0, sizeof(igd));
++ const struct wpa_igtk_kde *igtk;
++
++ igtk = (const struct wpa_igtk_kde *) (buf + 2);
++ if (wpa_supplicant_install_igtk(sm, igtk) < 0)
+ return -1;
+- }
+- os_memset(&igd, 0, sizeof(igd));
+ #endif /* CONFIG_IEEE80211W */
+ } else {
+ wpa_printf(MSG_DEBUG, "Unknown element id");
+diff --git a/src/rsn_supp/wpa_i.h b/src/rsn_supp/wpa_i.h
+index f653ba6..afc9e37 100644
+--- a/src/rsn_supp/wpa_i.h
++++ b/src/rsn_supp/wpa_i.h
+@@ -31,6 +31,10 @@ struct wpa_sm {
+ u8 rx_replay_counter[WPA_REPLAY_COUNTER_LEN];
+ int rx_replay_counter_set;
+ u8 request_counter[WPA_REPLAY_COUNTER_LEN];
++ struct wpa_gtk gtk;
++#ifdef CONFIG_IEEE80211W
++ struct wpa_igtk igtk;
++#endif /* CONFIG_IEEE80211W */
+
+ struct eapol_sm *eapol; /* EAPOL state machine from upper level code */
+
+--
+2.7.4
+
+From 8280294e74846ea342389a0cd17215050fa5afe8 Mon Sep 17 00:00:00 2001
+From: Jouni Malinen <address@hidden>
+Date: Sun, 1 Oct 2017 12:12:24 +0300
+Subject: [PATCH 3/8] Extend protection of GTK/IGTK reinstallation of WNM-Sleep
+ Mode cases
+
+This extends the protection to track last configured GTK/IGTK value
+separately from EAPOL-Key frames and WNM-Sleep Mode frames to cover a
+corner case where these two different mechanisms may get used when the
+GTK/IGTK has changed and tracking a single value is not sufficient to
+detect a possible key reconfiguration.
+
+Signed-off-by: Jouni Malinen <address@hidden>
+---
+ src/rsn_supp/wpa.c | 53 +++++++++++++++++++++++++++++++++++++---------------
+ src/rsn_supp/wpa_i.h | 2 ++
+ 2 files changed, 40 insertions(+), 15 deletions(-)
+
+diff --git a/src/rsn_supp/wpa.c b/src/rsn_supp/wpa.c
+index 95bd7be..7a2c68d 100644
+--- a/src/rsn_supp/wpa.c
++++ b/src/rsn_supp/wpa.c
+@@ -709,14 +709,17 @@ struct wpa_gtk_data {
+
+ static int wpa_supplicant_install_gtk(struct wpa_sm *sm,
+ const struct wpa_gtk_data *gd,
+- const u8 *key_rsc)
++ const u8 *key_rsc, int wnm_sleep)
+ {
+ const u8 *_gtk = gd->gtk;
+ u8 gtk_buf[32];
+
+ /* Detect possible key reinstallation */
+- if (sm->gtk.gtk_len == (size_t) gd->gtk_len &&
+- os_memcmp(sm->gtk.gtk, gd->gtk, sm->gtk.gtk_len) == 0) {
++ if ((sm->gtk.gtk_len == (size_t) gd->gtk_len &&
++ os_memcmp(sm->gtk.gtk, gd->gtk, sm->gtk.gtk_len) == 0) ||
++ (sm->gtk_wnm_sleep.gtk_len == (size_t) gd->gtk_len &&
++ os_memcmp(sm->gtk_wnm_sleep.gtk, gd->gtk,
++ sm->gtk_wnm_sleep.gtk_len) == 0)) {
+ wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
+ "WPA: Not reinstalling already in-use GTK to the driver
(keyidx=%d tx=%d len=%d)",
+ gd->keyidx, gd->tx, gd->gtk_len);
+@@ -757,8 +760,14 @@ static int wpa_supplicant_install_gtk(struct wpa_sm *sm,
+ }
+ os_memset(gtk_buf, 0, sizeof(gtk_buf));
+
+- sm->gtk.gtk_len = gd->gtk_len;
+- os_memcpy(sm->gtk.gtk, gd->gtk, sm->gtk.gtk_len);
++ if (wnm_sleep) {
++ sm->gtk_wnm_sleep.gtk_len = gd->gtk_len;
++ os_memcpy(sm->gtk_wnm_sleep.gtk, gd->gtk,
++ sm->gtk_wnm_sleep.gtk_len);
++ } else {
++ sm->gtk.gtk_len = gd->gtk_len;
++ os_memcpy(sm->gtk.gtk, gd->gtk, sm->gtk.gtk_len);
++ }
+
+ return 0;
+ }
+@@ -852,7 +861,7 @@ static int wpa_supplicant_pairwise_gtk(struct wpa_sm *sm,
+ (wpa_supplicant_check_group_cipher(sm, sm->group_cipher,
+ gtk_len, gtk_len,
+ &gd.key_rsc_len, &gd.alg) ||
+- wpa_supplicant_install_gtk(sm, &gd, key_rsc))) {
++ wpa_supplicant_install_gtk(sm, &gd, key_rsc, 0))) {
+ wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
+ "RSN: Failed to install GTK");
+ os_memset(&gd, 0, sizeof(gd));
+@@ -868,14 +877,18 @@ static int wpa_supplicant_pairwise_gtk(struct wpa_sm *sm,
+
+ #ifdef CONFIG_IEEE80211W
+ static int wpa_supplicant_install_igtk(struct wpa_sm *sm,
+- const struct wpa_igtk_kde *igtk)
++ const struct wpa_igtk_kde *igtk,
++ int wnm_sleep)
+ {
+ size_t len = wpa_cipher_key_len(sm->mgmt_group_cipher);
+ u16 keyidx = WPA_GET_LE16(igtk->keyid);
+
+ /* Detect possible key reinstallation */
+- if (sm->igtk.igtk_len == len &&
+- os_memcmp(sm->igtk.igtk, igtk->igtk, sm->igtk.igtk_len) == 0) {
++ if ((sm->igtk.igtk_len == len &&
++ os_memcmp(sm->igtk.igtk, igtk->igtk, sm->igtk.igtk_len) == 0) ||
++ (sm->igtk_wnm_sleep.igtk_len == len &&
++ os_memcmp(sm->igtk_wnm_sleep.igtk, igtk->igtk,
++ sm->igtk_wnm_sleep.igtk_len) == 0)) {
+ wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
+ "WPA: Not reinstalling already in-use IGTK to the
driver (keyidx=%d)",
+ keyidx);
+@@ -900,8 +913,14 @@ static int wpa_supplicant_install_igtk(struct wpa_sm *sm,
+ return -1;
+ }
+
+- sm->igtk.igtk_len = len;
+- os_memcpy(sm->igtk.igtk, igtk->igtk, sm->igtk.igtk_len);
++ if (wnm_sleep) {
++ sm->igtk_wnm_sleep.igtk_len = len;
++ os_memcpy(sm->igtk_wnm_sleep.igtk, igtk->igtk,
++ sm->igtk_wnm_sleep.igtk_len);
++ } else {
++ sm->igtk.igtk_len = len;
++ os_memcpy(sm->igtk.igtk, igtk->igtk, sm->igtk.igtk_len);
++ }
+
+ return 0;
+ }
+@@ -924,7 +943,7 @@ static int ieee80211w_set_keys(struct wpa_sm *sm,
+ return -1;
+
+ igtk = (const struct wpa_igtk_kde *) ie->igtk;
+- if (wpa_supplicant_install_igtk(sm, igtk) < 0)
++ if (wpa_supplicant_install_igtk(sm, igtk, 0) < 0)
+ return -1;
+ }
+
+@@ -1574,7 +1593,7 @@ static void wpa_supplicant_process_1_of_2(struct wpa_sm
*sm,
+ if (wpa_supplicant_rsc_relaxation(sm, key->key_rsc))
+ key_rsc = null_rsc;
+
+- if (wpa_supplicant_install_gtk(sm, &gd, key_rsc) ||
++ if (wpa_supplicant_install_gtk(sm, &gd, key_rsc, 0) ||
+ wpa_supplicant_send_2_of_2(sm, key, ver, key_info) < 0)
+ goto failed;
+ os_memset(&gd, 0, sizeof(gd));
+@@ -2386,8 +2405,10 @@ void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8
*bssid)
+ sm->tptk_set = 0;
+ os_memset(&sm->tptk, 0, sizeof(sm->tptk));
+ os_memset(&sm->gtk, 0, sizeof(sm->gtk));
++ os_memset(&sm->gtk_wnm_sleep, 0, sizeof(sm->gtk_wnm_sleep));
+ #ifdef CONFIG_IEEE80211W
+ os_memset(&sm->igtk, 0, sizeof(sm->igtk));
++ os_memset(&sm->igtk_wnm_sleep, 0, sizeof(sm->igtk_wnm_sleep));
+ #endif /* CONFIG_IEEE80211W */
+ }
+
+@@ -2920,8 +2941,10 @@ void wpa_sm_drop_sa(struct wpa_sm *sm)
+ os_memset(&sm->ptk, 0, sizeof(sm->ptk));
+ os_memset(&sm->tptk, 0, sizeof(sm->tptk));
+ os_memset(&sm->gtk, 0, sizeof(sm->gtk));
++ os_memset(&sm->gtk_wnm_sleep, 0, sizeof(sm->gtk_wnm_sleep));
+ #ifdef CONFIG_IEEE80211W
+ os_memset(&sm->igtk, 0, sizeof(sm->igtk));
++ os_memset(&sm->igtk_wnm_sleep, 0, sizeof(sm->igtk_wnm_sleep));
+ #endif /* CONFIG_IEEE80211W */
+ #ifdef CONFIG_IEEE80211R
+ os_memset(sm->xxkey, 0, sizeof(sm->xxkey));
+@@ -2986,7 +3009,7 @@ int wpa_wnmsleep_install_key(struct wpa_sm *sm, u8
subelem_id, u8 *buf)
+
+ wpa_hexdump_key(MSG_DEBUG, "Install GTK (WNM SLEEP)",
+ gd.gtk, gd.gtk_len);
+- if (wpa_supplicant_install_gtk(sm, &gd, key_rsc)) {
++ if (wpa_supplicant_install_gtk(sm, &gd, key_rsc, 1)) {
+ os_memset(&gd, 0, sizeof(gd));
+ wpa_printf(MSG_DEBUG, "Failed to install the GTK in "
+ "WNM mode");
+@@ -2998,7 +3021,7 @@ int wpa_wnmsleep_install_key(struct wpa_sm *sm, u8
subelem_id, u8 *buf)
+ const struct wpa_igtk_kde *igtk;
+
+ igtk = (const struct wpa_igtk_kde *) (buf + 2);
+- if (wpa_supplicant_install_igtk(sm, igtk) < 0)
++ if (wpa_supplicant_install_igtk(sm, igtk, 1) < 0)
+ return -1;
+ #endif /* CONFIG_IEEE80211W */
+ } else {
+diff --git a/src/rsn_supp/wpa_i.h b/src/rsn_supp/wpa_i.h
+index afc9e37..9a54631 100644
+--- a/src/rsn_supp/wpa_i.h
++++ b/src/rsn_supp/wpa_i.h
+@@ -32,8 +32,10 @@ struct wpa_sm {
+ int rx_replay_counter_set;
+ u8 request_counter[WPA_REPLAY_COUNTER_LEN];
+ struct wpa_gtk gtk;
++ struct wpa_gtk gtk_wnm_sleep;
+ #ifdef CONFIG_IEEE80211W
+ struct wpa_igtk igtk;
++ struct wpa_igtk igtk_wnm_sleep;
+ #endif /* CONFIG_IEEE80211W */
+
+ struct eapol_sm *eapol; /* EAPOL state machine from upper level code */
+--
+2.7.4
+
diff --git a/gnu/packages/patches/wpa-supplicant-fix-nonce-reuse.patch
b/gnu/packages/patches/wpa-supplicant-fix-nonce-reuse.patch
new file mode 100644
index 000000000..d8dd9cd20
--- /dev/null
+++ b/gnu/packages/patches/wpa-supplicant-fix-nonce-reuse.patch
@@ -0,0 +1,72 @@
+Fix a nonce re-use bug:
+
+https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt
+
+Patch copied from upstream:
+
+https://w1.fi/security/2017-1/rebased-v2.6-0005-Fix-PTK-rekeying-to-generate-a-new-ANonce.patch
+
+From 12fac09b437a1dc8a0f253e265934a8aaf4d2f8b Mon Sep 17 00:00:00 2001
+From: Jouni Malinen <address@hidden>
+Date: Sun, 1 Oct 2017 12:32:57 +0300
+Subject: [PATCH 5/8] Fix PTK rekeying to generate a new ANonce
+
+The Authenticator state machine path for PTK rekeying ended up bypassing
+the AUTHENTICATION2 state where a new ANonce is generated when going
+directly to the PTKSTART state since there is no need to try to
+determine the PMK again in such a case. This is far from ideal since the
+new PTK would depend on a new nonce only from the supplicant.
+
+Fix this by generating a new ANonce when moving to the PTKSTART state
+for the purpose of starting new 4-way handshake to rekey PTK.
+
+Signed-off-by: Jouni Malinen <address@hidden>
+---
+ src/ap/wpa_auth.c | 24 +++++++++++++++++++++---
+ 1 file changed, 21 insertions(+), 3 deletions(-)
+
+diff --git a/src/ap/wpa_auth.c b/src/ap/wpa_auth.c
+index 707971d..bf10cc1 100644
+--- a/src/ap/wpa_auth.c
++++ b/src/ap/wpa_auth.c
+@@ -1901,6 +1901,21 @@ SM_STATE(WPA_PTK, AUTHENTICATION2)
+ }
+
+
++static int wpa_auth_sm_ptk_update(struct wpa_state_machine *sm)
++{
++ if (random_get_bytes(sm->ANonce, WPA_NONCE_LEN)) {
++ wpa_printf(MSG_ERROR,
++ "WPA: Failed to get random data for ANonce");
++ sm->Disconnect = TRUE;
++ return -1;
++ }
++ wpa_hexdump(MSG_DEBUG, "WPA: Assign new ANonce", sm->ANonce,
++ WPA_NONCE_LEN);
++ sm->TimeoutCtr = 0;
++ return 0;
++}
++
++
+ SM_STATE(WPA_PTK, INITPMK)
+ {
+ u8 msk[2 * PMK_LEN];
+@@ -2458,9 +2473,12 @@ SM_STEP(WPA_PTK)
+ SM_ENTER(WPA_PTK, AUTHENTICATION);
+ else if (sm->ReAuthenticationRequest)
+ SM_ENTER(WPA_PTK, AUTHENTICATION2);
+- else if (sm->PTKRequest)
+- SM_ENTER(WPA_PTK, PTKSTART);
+- else switch (sm->wpa_ptk_state) {
++ else if (sm->PTKRequest) {
++ if (wpa_auth_sm_ptk_update(sm) < 0)
++ SM_ENTER(WPA_PTK, DISCONNECTED);
++ else
++ SM_ENTER(WPA_PTK, PTKSTART);
++ } else switch (sm->wpa_ptk_state) {
+ case WPA_PTK_INITIALIZE:
+ break;
+ case WPA_PTK_DISCONNECT:
+--
+2.7.4
+
diff --git a/gnu/packages/patches/wpa-supplicant-fix-zeroed-keys.patch
b/gnu/packages/patches/wpa-supplicant-fix-zeroed-keys.patch
new file mode 100644
index 000000000..7f437271f
--- /dev/null
+++ b/gnu/packages/patches/wpa-supplicant-fix-zeroed-keys.patch
@@ -0,0 +1,86 @@
+Don't install a zeroed encryption key:
+
+https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt
+
+Patch copied from upstream:
+https://w1.fi/security/2017-1/rebased-v2.6-0004-Prevent-installation-of-an-all-zero-TK.patch
+
+From 8f82bc94e8697a9d47fa8774dfdaaede1084912c Mon Sep 17 00:00:00 2001
+From: Mathy Vanhoef <address@hidden>
+Date: Fri, 29 Sep 2017 04:22:51 +0200
+Subject: [PATCH 4/8] Prevent installation of an all-zero TK
+
+Properly track whether a PTK has already been installed to the driver
+and the TK part cleared from memory. This prevents an attacker from
+trying to trick the client into installing an all-zero TK.
+
+This fixes the earlier fix in commit
+ad00d64e7d8827b3cebd665a0ceb08adabf15e1e ('Fix TK configuration to the
+driver in EAPOL-Key 3/4 retry case') which did not take into account
+possibility of an extra message 1/4 showing up between retries of
+message 3/4.
+
+Signed-off-by: Mathy Vanhoef <address@hidden>
+---
+ src/common/wpa_common.h | 1 +
+ src/rsn_supp/wpa.c | 5 ++---
+ src/rsn_supp/wpa_i.h | 1 -
+ 3 files changed, 3 insertions(+), 4 deletions(-)
+
+diff --git a/src/common/wpa_common.h b/src/common/wpa_common.h
+index d200285..1021ccb 100644
+--- a/src/common/wpa_common.h
++++ b/src/common/wpa_common.h
+@@ -215,6 +215,7 @@ struct wpa_ptk {
+ size_t kck_len;
+ size_t kek_len;
+ size_t tk_len;
++ int installed; /* 1 if key has already been installed to driver */
+ };
+
+ struct wpa_gtk {
+diff --git a/src/rsn_supp/wpa.c b/src/rsn_supp/wpa.c
+index 7a2c68d..0550a41 100644
+--- a/src/rsn_supp/wpa.c
++++ b/src/rsn_supp/wpa.c
+@@ -510,7 +510,6 @@ static void wpa_supplicant_process_1_of_4(struct wpa_sm
*sm,
+ os_memset(buf, 0, sizeof(buf));
+ }
+ sm->tptk_set = 1;
+- sm->tk_to_set = 1;
+
+ kde = sm->assoc_wpa_ie;
+ kde_len = sm->assoc_wpa_ie_len;
+@@ -615,7 +614,7 @@ static int wpa_supplicant_install_ptk(struct wpa_sm *sm,
+ enum wpa_alg alg;
+ const u8 *key_rsc;
+
+- if (!sm->tk_to_set) {
++ if (sm->ptk.installed) {
+ wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
+ "WPA: Do not re-install same PTK to the driver");
+ return 0;
+@@ -659,7 +658,7 @@ static int wpa_supplicant_install_ptk(struct wpa_sm *sm,
+
+ /* TK is not needed anymore in supplicant */
+ os_memset(sm->ptk.tk, 0, WPA_TK_MAX_LEN);
+- sm->tk_to_set = 0;
++ sm->ptk.installed = 1;
+
+ if (sm->wpa_ptk_rekey) {
+ eloop_cancel_timeout(wpa_sm_rekey_ptk, sm, NULL);
+diff --git a/src/rsn_supp/wpa_i.h b/src/rsn_supp/wpa_i.h
+index 9a54631..41f371f 100644
+--- a/src/rsn_supp/wpa_i.h
++++ b/src/rsn_supp/wpa_i.h
+@@ -24,7 +24,6 @@ struct wpa_sm {
+ struct wpa_ptk ptk, tptk;
+ int ptk_set, tptk_set;
+ unsigned int msg_3_of_4_ok:1;
+- unsigned int tk_to_set:1;
+ u8 snonce[WPA_NONCE_LEN];
+ u8 anonce[WPA_NONCE_LEN]; /* ANonce from the last 1/4 msg */
+ int renew_snonce;
+--
+2.7.4
+
diff --git a/gnu/packages/patches/wpa-supplicant-krack-followups.patch
b/gnu/packages/patches/wpa-supplicant-krack-followups.patch
new file mode 100644
index 000000000..00904addb
--- /dev/null
+++ b/gnu/packages/patches/wpa-supplicant-krack-followups.patch
@@ -0,0 +1,275 @@
+These three patches are follow-ups to the bug fixes for the 'KRACK' key
+re-installation attacks on Wi-Fi's WPA2 security protocol. See upstream
+security announcement for more information:
+
+https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt
+
+These three patches copied from upstream:
+
+https://w1.fi/security/2017-1/rebased-v2.6-0006-TDLS-Reject-TPK-TK-reconfiguration.patch
+https://w1.fi/security/2017-1/rebased-v2.6-0007-WNM-Ignore-WNM-Sleep-Mode-Response-without-pending-r.patch
+https://w1.fi/security/2017-1/rebased-v2.6-0008-FT-Do-not-allow-multiple-Reassociation-Response-fram.patch
+
+From 6c4bed4f47d1960ec04981a9d50e5076aea5223d Mon Sep 17 00:00:00 2001
+From: Jouni Malinen <address@hidden>
+Date: Fri, 22 Sep 2017 11:03:15 +0300
+Subject: [PATCH 6/8] TDLS: Reject TPK-TK reconfiguration
+
+Do not try to reconfigure the same TPK-TK to the driver after it has
+been successfully configured. This is an explicit check to avoid issues
+related to resetting the TX/RX packet number. There was already a check
+for this for TPK M2 (retries of that message are ignored completely), so
+that behavior does not get modified.
+
+For TPK M3, the TPK-TK could have been reconfigured, but that was
+followed by immediate teardown of the link due to an issue in updating
+the STA entry. Furthermore, for TDLS with any real security (i.e.,
+ignoring open/WEP), the TPK message exchange is protected on the AP path
+and simple replay attacks are not feasible.
+
+As an additional corner case, make sure the local nonce gets updated if
+the peer uses a very unlikely "random nonce" of all zeros.
+
+Signed-off-by: Jouni Malinen <address@hidden>
+---
+ src/rsn_supp/tdls.c | 38 ++++++++++++++++++++++++++++++++++++--
+ 1 file changed, 36 insertions(+), 2 deletions(-)
+
+diff --git a/src/rsn_supp/tdls.c b/src/rsn_supp/tdls.c
+index e424168..9eb9738 100644
+--- a/src/rsn_supp/tdls.c
++++ b/src/rsn_supp/tdls.c
+@@ -112,6 +112,7 @@ struct wpa_tdls_peer {
+ u8 tk[16]; /* TPK-TK; assuming only CCMP will be used */
+ } tpk;
+ int tpk_set;
++ int tk_set; /* TPK-TK configured to the driver */
+ int tpk_success;
+ int tpk_in_progress;
+
+@@ -192,6 +193,20 @@ static int wpa_tdls_set_key(struct wpa_sm *sm, struct
wpa_tdls_peer *peer)
+ u8 rsc[6];
+ enum wpa_alg alg;
+
++ if (peer->tk_set) {
++ /*
++ * This same TPK-TK has already been configured to the driver
++ * and this new configuration attempt (likely due to an
++ * unexpected retransmitted frame) would result in clearing
++ * the TX/RX sequence number which can break security, so must
++ * not allow that to happen.
++ */
++ wpa_printf(MSG_INFO, "TDLS: TPK-TK for the peer " MACSTR
++ " has already been configured to the driver - do not
reconfigure",
++ MAC2STR(peer->addr));
++ return -1;
++ }
++
+ os_memset(rsc, 0, 6);
+
+ switch (peer->cipher) {
+@@ -209,12 +224,15 @@ static int wpa_tdls_set_key(struct wpa_sm *sm, struct
wpa_tdls_peer *peer)
+ return -1;
+ }
+
++ wpa_printf(MSG_DEBUG, "TDLS: Configure pairwise key for peer " MACSTR,
++ MAC2STR(peer->addr));
+ if (wpa_sm_set_key(sm, alg, peer->addr, -1, 1,
+ rsc, sizeof(rsc), peer->tpk.tk, key_len) < 0) {
+ wpa_printf(MSG_WARNING, "TDLS: Failed to set TPK to the "
+ "driver");
+ return -1;
+ }
++ peer->tk_set = 1;
+ return 0;
+ }
+
+@@ -696,7 +714,7 @@ static void wpa_tdls_peer_clear(struct wpa_sm *sm, struct
wpa_tdls_peer *peer)
+ peer->cipher = 0;
+ peer->qos_info = 0;
+ peer->wmm_capable = 0;
+- peer->tpk_set = peer->tpk_success = 0;
++ peer->tk_set = peer->tpk_set = peer->tpk_success = 0;
+ peer->chan_switch_enabled = 0;
+ os_memset(&peer->tpk, 0, sizeof(peer->tpk));
+ os_memset(peer->inonce, 0, WPA_NONCE_LEN);
+@@ -1159,6 +1177,7 @@ skip_rsnie:
+ wpa_tdls_peer_free(sm, peer);
+ return -1;
+ }
++ peer->tk_set = 0; /* A new nonce results in a new TK */
+ wpa_hexdump(MSG_DEBUG, "TDLS: Initiator Nonce for TPK handshake",
+ peer->inonce, WPA_NONCE_LEN);
+ os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN);
+@@ -1751,6 +1770,19 @@ static int wpa_tdls_addset_peer(struct wpa_sm *sm,
struct wpa_tdls_peer *peer,
+ }
+
+
++static int tdls_nonce_set(const u8 *nonce)
++{
++ int i;
++
++ for (i = 0; i < WPA_NONCE_LEN; i++) {
++ if (nonce[i])
++ return 1;
++ }
++
++ return 0;
++}
++
++
+ static int wpa_tdls_process_tpk_m1(struct wpa_sm *sm, const u8 *src_addr,
+ const u8 *buf, size_t len)
+ {
+@@ -2004,7 +2036,8 @@ skip_rsn:
+ peer->rsnie_i_len = kde.rsn_ie_len;
+ peer->cipher = cipher;
+
+- if (os_memcmp(peer->inonce, ftie->Snonce, WPA_NONCE_LEN) != 0) {
++ if (os_memcmp(peer->inonce, ftie->Snonce, WPA_NONCE_LEN) != 0 ||
++ !tdls_nonce_set(peer->inonce)) {
+ /*
+ * There is no point in updating the RNonce for every obtained
+ * TPK M1 frame (e.g., retransmission due to timeout) with the
+@@ -2020,6 +2053,7 @@ skip_rsn:
+ "TDLS: Failed to get random data for responder
nonce");
+ goto error;
+ }
++ peer->tk_set = 0; /* A new nonce results in a new TK */
+ }
+
+ #if 0
+--
+2.7.4
+
+From 53c5eb58e95004f86e65ee9fbfccbc291b139057 Mon Sep 17 00:00:00 2001
+From: Jouni Malinen <address@hidden>
+Date: Fri, 22 Sep 2017 11:25:02 +0300
+Subject: [PATCH 7/8] WNM: Ignore WNM-Sleep Mode Response without pending
+ request
+
+Commit 03ed0a52393710be6bdae657d1b36efa146520e5 ('WNM: Ignore WNM-Sleep
+Mode Response if WNM-Sleep Mode has not been used') started ignoring the
+response when no WNM-Sleep Mode Request had been used during the
+association. This can be made tighter by clearing the used flag when
+successfully processing a response. This adds an additional layer of
+protection against unexpected retransmissions of the response frame.
+
+Signed-off-by: Jouni Malinen <address@hidden>
+---
+ wpa_supplicant/wnm_sta.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/wpa_supplicant/wnm_sta.c b/wpa_supplicant/wnm_sta.c
+index 1b3409c..67a07ff 100644
+--- a/wpa_supplicant/wnm_sta.c
++++ b/wpa_supplicant/wnm_sta.c
+@@ -260,7 +260,7 @@ static void ieee802_11_rx_wnmsleep_resp(struct
wpa_supplicant *wpa_s,
+
+ if (!wpa_s->wnmsleep_used) {
+ wpa_printf(MSG_DEBUG,
+- "WNM: Ignore WNM-Sleep Mode Response frame since
WNM-Sleep Mode has not been used in this association");
++ "WNM: Ignore WNM-Sleep Mode Response frame since
WNM-Sleep Mode operation has not been requested");
+ return;
+ }
+
+@@ -299,6 +299,8 @@ static void ieee802_11_rx_wnmsleep_resp(struct
wpa_supplicant *wpa_s,
+ return;
+ }
+
++ wpa_s->wnmsleep_used = 0;
++
+ if (wnmsleep_ie->status == WNM_STATUS_SLEEP_ACCEPT ||
+ wnmsleep_ie->status == WNM_STATUS_SLEEP_EXIT_ACCEPT_GTK_UPDATE) {
+ wpa_printf(MSG_DEBUG, "Successfully recv WNM-Sleep Response "
+--
+2.7.4
+
+https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt
+
+Patch copied from upstream:
+
+https://w1.fi/security/2017-1/rebased-v2.6-0008-FT-Do-not-allow-multiple-Reassociation-Response-fram.patch
+
+From b372ab0b7daea719749194dc554b26e6367603f2 Mon Sep 17 00:00:00 2001
+From: Jouni Malinen <address@hidden>
+Date: Fri, 22 Sep 2017 12:06:37 +0300
+Subject: [PATCH 8/8] FT: Do not allow multiple Reassociation Response frames
+
+The driver is expected to not report a second association event without
+the station having explicitly request a new association. As such, this
+case should not be reachable. However, since reconfiguring the same
+pairwise or group keys to the driver could result in nonce reuse issues,
+be extra careful here and do an additional state check to avoid this
+even if the local driver ends up somehow accepting an unexpected
+Reassociation Response frame.
+
+Signed-off-by: Jouni Malinen <address@hidden>
+---
+ src/rsn_supp/wpa.c | 3 +++
+ src/rsn_supp/wpa_ft.c | 8 ++++++++
+ src/rsn_supp/wpa_i.h | 1 +
+ 3 files changed, 12 insertions(+)
+
+diff --git a/src/rsn_supp/wpa.c b/src/rsn_supp/wpa.c
+index 0550a41..2a53c6f 100644
+--- a/src/rsn_supp/wpa.c
++++ b/src/rsn_supp/wpa.c
+@@ -2440,6 +2440,9 @@ void wpa_sm_notify_disassoc(struct wpa_sm *sm)
+ #ifdef CONFIG_TDLS
+ wpa_tdls_disassoc(sm);
+ #endif /* CONFIG_TDLS */
++#ifdef CONFIG_IEEE80211R
++ sm->ft_reassoc_completed = 0;
++#endif /* CONFIG_IEEE80211R */
+
+ /* Keys are not needed in the WPA state machine anymore */
+ wpa_sm_drop_sa(sm);
+diff --git a/src/rsn_supp/wpa_ft.c b/src/rsn_supp/wpa_ft.c
+index 205793e..d45bb45 100644
+--- a/src/rsn_supp/wpa_ft.c
++++ b/src/rsn_supp/wpa_ft.c
+@@ -153,6 +153,7 @@ static u8 * wpa_ft_gen_req_ies(struct wpa_sm *sm, size_t
*len,
+ u16 capab;
+
+ sm->ft_completed = 0;
++ sm->ft_reassoc_completed = 0;
+
+ buf_len = 2 + sizeof(struct rsn_mdie) + 2 + sizeof(struct rsn_ftie) +
+ 2 + sm->r0kh_id_len + ric_ies_len + 100;
+@@ -681,6 +682,11 @@ int wpa_ft_validate_reassoc_resp(struct wpa_sm *sm, const
u8 *ies,
+ return -1;
+ }
+
++ if (sm->ft_reassoc_completed) {
++ wpa_printf(MSG_DEBUG, "FT: Reassociation has already been
completed for this FT protocol instance - ignore unexpected retransmission");
++ return 0;
++ }
++
+ if (wpa_ft_parse_ies(ies, ies_len, &parse) < 0) {
+ wpa_printf(MSG_DEBUG, "FT: Failed to parse IEs");
+ return -1;
+@@ -781,6 +787,8 @@ int wpa_ft_validate_reassoc_resp(struct wpa_sm *sm, const
u8 *ies,
+ return -1;
+ }
+
++ sm->ft_reassoc_completed = 1;
++
+ if (wpa_ft_process_gtk_subelem(sm, parse.gtk, parse.gtk_len) < 0)
+ return -1;
+
+diff --git a/src/rsn_supp/wpa_i.h b/src/rsn_supp/wpa_i.h
+index 41f371f..56f88dc 100644
+--- a/src/rsn_supp/wpa_i.h
++++ b/src/rsn_supp/wpa_i.h
+@@ -128,6 +128,7 @@ struct wpa_sm {
+ size_t r0kh_id_len;
+ u8 r1kh_id[FT_R1KH_ID_LEN];
+ int ft_completed;
++ int ft_reassoc_completed;
+ int over_the_ds_in_progress;
+ u8 target_ap[ETH_ALEN]; /* over-the-DS target AP */
+ int set_ptk_after_assoc;
+--
+2.7.4
+
--
2.14.2
- [bug#28869] [PATCH] gnu: wpa-supplicant: Fix "KRACK" key reinstallation attacks [security fixes].,
Leo Famulari <=