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-rw-r--r--package/network/services/hostapd/Makefile2
-rw-r--r--package/network/services/hostapd/patches/063-0010-SAE-Fix-confirm-message-validation-in-error-cases.patch52
2 files changed, 53 insertions, 1 deletions
diff --git a/package/network/services/hostapd/Makefile b/package/network/services/hostapd/Makefile
index b7190d37b9..6308dca84f 100644
--- a/package/network/services/hostapd/Makefile
+++ b/package/network/services/hostapd/Makefile
@@ -7,7 +7,7 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=hostapd
-PKG_RELEASE:=4
+PKG_RELEASE:=5
PKG_SOURCE_URL:=http://w1.fi/hostap.git
PKG_SOURCE_PROTO:=git
diff --git a/package/network/services/hostapd/patches/063-0010-SAE-Fix-confirm-message-validation-in-error-cases.patch b/package/network/services/hostapd/patches/063-0010-SAE-Fix-confirm-message-validation-in-error-cases.patch
new file mode 100644
index 0000000000..3a3658e640
--- /dev/null
+++ b/package/network/services/hostapd/patches/063-0010-SAE-Fix-confirm-message-validation-in-error-cases.patch
@@ -0,0 +1,52 @@
+From ac8fa9ef198640086cf2ce7c94673be2b6a018a0 Mon Sep 17 00:00:00 2001
+From: Jouni Malinen <jouni@codeaurora.org>
+Date: Tue, 5 Mar 2019 23:43:25 +0200
+Subject: [PATCH 10/14] SAE: Fix confirm message validation in error cases
+
+Explicitly verify that own and peer commit scalar/element are available
+when trying to check SAE confirm message. It could have been possible to
+hit a NULL pointer dereference if the peer element could not have been
+parsed. (CVE-2019-9496)
+
+Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
+---
+ src/common/sae.c | 14 +++++++++++---
+ 1 file changed, 11 insertions(+), 3 deletions(-)
+
+--- a/src/common/sae.c
++++ b/src/common/sae.c
+@@ -1464,23 +1464,31 @@ int sae_check_confirm(struct sae_data *s
+
+ wpa_printf(MSG_DEBUG, "SAE: peer-send-confirm %u", WPA_GET_LE16(data));
+
+- if (sae->tmp == NULL) {
++ if (!sae->tmp || !sae->peer_commit_scalar ||
++ !sae->tmp->own_commit_scalar) {
+ wpa_printf(MSG_DEBUG, "SAE: Temporary data not yet available");
+ return -1;
+ }
+
+- if (sae->tmp->ec)
++ if (sae->tmp->ec) {
++ if (!sae->tmp->peer_commit_element_ecc ||
++ !sae->tmp->own_commit_element_ecc)
++ return -1;
+ sae_cn_confirm_ecc(sae, data, sae->peer_commit_scalar,
+ sae->tmp->peer_commit_element_ecc,
+ sae->tmp->own_commit_scalar,
+ sae->tmp->own_commit_element_ecc,
+ verifier);
+- else
++ } else {
++ if (!sae->tmp->peer_commit_element_ffc ||
++ !sae->tmp->own_commit_element_ffc)
++ return -1;
+ sae_cn_confirm_ffc(sae, data, sae->peer_commit_scalar,
+ sae->tmp->peer_commit_element_ffc,
+ sae->tmp->own_commit_scalar,
+ sae->tmp->own_commit_element_ffc,
+ verifier);
++ }
+
+ if (os_memcmp_const(verifier, data + 2, SHA256_MAC_LEN) != 0) {
+ wpa_printf(MSG_DEBUG, "SAE: Confirm mismatch");