aboutsummaryrefslogtreecommitdiff
path: root/gnu/packages/patches/wpa-supplicant-fix-zeroed-keys.patch
diff options
context:
space:
mode:
Diffstat (limited to 'gnu/packages/patches/wpa-supplicant-fix-zeroed-keys.patch')
-rw-r--r--gnu/packages/patches/wpa-supplicant-fix-zeroed-keys.patch86
1 files changed, 0 insertions, 86 deletions
diff --git a/gnu/packages/patches/wpa-supplicant-fix-zeroed-keys.patch b/gnu/packages/patches/wpa-supplicant-fix-zeroed-keys.patch
deleted file mode 100644
index 7f437271f3..0000000000
--- a/gnu/packages/patches/wpa-supplicant-fix-zeroed-keys.patch
+++ /dev/null
@@ -1,86 +0,0 @@
-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 <Mathy.Vanhoef@cs.kuleuven.be>
-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 <Mathy.Vanhoef@cs.kuleuven.be>
----
- 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
-