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-rw-r--r--main/wpa_supplicant/APKBUILD6
-rw-r--r--main/wpa_supplicant/CVE-2021-27803.patch50
2 files changed, 55 insertions, 1 deletions
diff --git a/main/wpa_supplicant/APKBUILD b/main/wpa_supplicant/APKBUILD
index 33d21a75f9..198862cc98 100644
--- a/main/wpa_supplicant/APKBUILD
+++ b/main/wpa_supplicant/APKBUILD
@@ -2,7 +2,7 @@
# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
pkgname=wpa_supplicant
pkgver=2.8
-pkgrel=4
+pkgrel=5
pkgdesc="A utility providing key negotiation for WPA wireless networks"
url="https://w1.fi/wpa_supplicant/"
arch="all"
@@ -25,11 +25,14 @@ source="https://w1.fi/releases/$pkgname-$pkgver.tar.gz
0006-dragonfly-Disable-use-of-groups-using-Brainpool-curv.patch
CVE-2019-16275.patch
CVE-2021-0326.patch
+ CVE-2021-27803.patch
config
wpa_cli.sh"
# secfixes:
+# 2.8-r5:
+# - CVE-2021-27803
# 2.8-r4:
# - CVE-2021-0326
# 2.8-r3:
@@ -125,5 +128,6 @@ bcae73930c35d441c5615970c305abb3dff293fdec16df50823e57419b22d1aac0e780970619e0c7
4734a8ab8ba1e91fc9e3d729f34527c14c291df238b02adea5acc04b0361b41d4bffca2fb13a4f464e9f007fa624117af4f50d755cb41a3129b4868da91bdf9a 0006-dragonfly-Disable-use-of-groups-using-Brainpool-curv.patch
63710cfb0992f2c346a9807d8c97cbeaed032fa376a0e93a2e56f7742ce515e9c4dfadbdb1af03ba272281f639aab832f0178f67634c222a5d99e1d462aa9e38 CVE-2019-16275.patch
e212dd6a2c56c086c14a2c96f479f7a8e6521b6a24c648eb03363db078398e64a38e343ff6faa327d5a0244a7969ecd34c5844d676c697eeb8eb842101fa9cf9 CVE-2021-0326.patch
+af8b4a526a6833de4921fcbbd1b03da7e027276c909d512bd59a95e9767ffe8580135f9aee8947c4317681c4fe130f7ec50cba947f8375313f832a66c66b2cd5 CVE-2021-27803.patch
6707991f9a071f2fcb09d164d31d12b1f52b91fbb5574b70b8d6f9727f72bbe42b03dd66d10fcc2126f5b7e49ac785657dec90e88b4bf54a9aa5638582f6e505 config
212c4265afce2e72b95a32cd785612d6c3e821b47101ead154136d184ac4add01434ada6c87edbb9a98496552e76e1a4d79c6b5840e3a5cfe5e6d602fceae576 wpa_cli.sh"
diff --git a/main/wpa_supplicant/CVE-2021-27803.patch b/main/wpa_supplicant/CVE-2021-27803.patch
new file mode 100644
index 0000000000..1942bb3d55
--- /dev/null
+++ b/main/wpa_supplicant/CVE-2021-27803.patch
@@ -0,0 +1,50 @@
+From 8460e3230988ef2ec13ce6b69b687e941f6cdb32 Mon Sep 17 00:00:00 2001
+From: Jouni Malinen <jouni@codeaurora.org>
+Date: Tue, 8 Dec 2020 23:52:50 +0200
+Subject: [PATCH] P2P: Fix a corner case in peer addition based on PD Request
+
+p2p_add_device() may remove the oldest entry if there is no room in the
+peer table for a new peer. This would result in any pointer to that
+removed entry becoming stale. A corner case with an invalid PD Request
+frame could result in such a case ending up using (read+write) freed
+memory. This could only by triggered when the peer table has reached its
+maximum size and the PD Request frame is received from the P2P Device
+Address of the oldest remaining entry and the frame has incorrect P2P
+Device Address in the payload.
+
+Fix this by fetching the dev pointer again after having called
+p2p_add_device() so that the stale pointer cannot be used.
+
+Fixes: 17bef1e97a50 ("P2P: Add peer entry based on Provision Discovery Request")
+Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
+---
+ src/p2p/p2p_pd.c | 12 +++++-------
+ 1 file changed, 5 insertions(+), 7 deletions(-)
+
+diff --git a/src/p2p/p2p_pd.c b/src/p2p/p2p_pd.c
+index 3994ec03f86b..05fd593494ef 100644
+--- a/src/p2p/p2p_pd.c
++++ b/src/p2p/p2p_pd.c
+@@ -595,14 +595,12 @@ void p2p_process_prov_disc_req(struct p2p_data *p2p, const u8 *sa,
+ goto out;
+ }
+
++ dev = p2p_get_device(p2p, sa);
+ if (!dev) {
+- dev = p2p_get_device(p2p, sa);
+- if (!dev) {
+- p2p_dbg(p2p,
+- "Provision Discovery device not found "
+- MACSTR, MAC2STR(sa));
+- goto out;
+- }
++ p2p_dbg(p2p,
++ "Provision Discovery device not found "
++ MACSTR, MAC2STR(sa));
++ goto out;
+ }
+ } else if (msg.wfd_subelems) {
+ wpabuf_free(dev->info.wfd_subelems);
+--
+2.25.1
+