From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Korsgaard Date: Fri, 5 Feb 2021 13:13:29 +0100 Subject: [Buildroot] [PATCH] package/wpa_supplicant: add upstream 2020-2 security fix Message-ID: <20210205121329.31131-1-peter@korsgaard.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Fixes the following security issue: - wpa_supplicant P2P group information processing vulnerability (no CVE yet) A vulnerability was discovered in how wpa_supplicant processing P2P (Wi-Fi Direct) group information from active group owners. The actual parsing of that information validates field lengths appropriately, but processing of the parsed information misses a length check when storing a copy of the secondary device types. This can result in writing attacker controlled data into the peer entry after the area assigned for the secondary device type. The overflow can result in corrupting pointers for heap allocations. This can result in an attacker within radio range of the device running P2P discovery being able to cause unexpected behavior, including termination of the wpa_supplicant process and potentially arbitrary code execution. For more details, see the advisory: https://w1.fi/security/2020-2/wpa_supplicant-p2p-group-info-processing-vulnerability.txt Signed-off-by: Peter Korsgaard --- package/wpa_supplicant/wpa_supplicant.hash | 1 + package/wpa_supplicant/wpa_supplicant.mk | 2 ++ 2 files changed, 3 insertions(+) diff --git a/package/wpa_supplicant/wpa_supplicant.hash b/package/wpa_supplicant/wpa_supplicant.hash index ff5a2edb34..cce465d849 100644 --- a/package/wpa_supplicant/wpa_supplicant.hash +++ b/package/wpa_supplicant/wpa_supplicant.hash @@ -1,3 +1,4 @@ # Locally calculated sha256 fcbdee7b4a64bea8177973299c8c824419c413ec2e3a95db63dd6a5dc3541f17 wpa_supplicant-2.9.tar.gz sha256 9da5dd0776da266b180b915e460ff75c6ff729aca1196ab396529510f24f3761 README +sha256 c4d65cc13863e0237d0644198558e2c47b4ed91e2b2be4516ff590724187c4a5 0001-P2P-Fix-copying-of-secondary-device-types-for-P2P-gr.patch diff --git a/package/wpa_supplicant/wpa_supplicant.mk b/package/wpa_supplicant/wpa_supplicant.mk index 9e8282b8ef..43baff6bbe 100644 --- a/package/wpa_supplicant/wpa_supplicant.mk +++ b/package/wpa_supplicant/wpa_supplicant.mk @@ -11,6 +11,8 @@ WPA_SUPPLICANT_LICENSE_FILES = README WPA_SUPPLICANT_CPE_ID_VENDOR = w1.fi WPA_SUPPLICANT_CONFIG = $(WPA_SUPPLICANT_DIR)/wpa_supplicant/.config WPA_SUPPLICANT_SUBDIR = wpa_supplicant +WPA_SUPPLICANT_PATCH = \ + https://w1.fi/security/2020-2/0001-P2P-Fix-copying-of-secondary-device-types-for-P2P-gr.patch WPA_SUPPLICANT_DBUS_OLD_SERVICE = fi.epitest.hostap.WPASupplicant WPA_SUPPLICANT_DBUS_NEW_SERVICE = fi.w1.wpa_supplicant1 WPA_SUPPLICANT_CFLAGS = $(TARGET_CFLAGS) -I$(STAGING_DIR)/usr/include/libnl3/ -- 2.20.1