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authorBrad Bishop <bradleyb@fuzziesquirrel.com>2018-12-16 17:11:34 -0800
committerBrad Bishop <bradleyb@fuzziesquirrel.com>2019-01-08 18:21:44 -0500
commit1a4b7ee28bf7413af6513fb45ad0d0736048f866 (patch)
tree79f6d8ea698cab8f2eaf4f54b793d2ca7a1451ce /meta-openembedded/meta-oe/recipes-connectivity/hostapd/hostapd/hostapd-CVE-2018-14526.patch
parent5b9ede0403237c7dace972affa65cf64a1aadd0e (diff)
downloadtalos-openbmc-1a4b7ee28bf7413af6513fb45ad0d0736048f866.tar.gz
talos-openbmc-1a4b7ee28bf7413af6513fb45ad0d0736048f866.zip
reset upstream subtrees to yocto 2.6
Reset the following subtrees on thud HEAD: poky: 87e3a9739d meta-openembedded: 6094ae18c8 meta-security: 31dc4e7532 meta-raspberrypi: a48743dc36 meta-xilinx: c42016e2e6 Also re-apply backports that didn't make it into thud: poky: 17726d0 systemd-systemctl-native: handle Install wildcards meta-openembedded: 4321a5d libtinyxml2: update to 7.0.1 042f0a3 libcereal: Add native and nativesdk classes e23284f libcereal: Allow empty package 030e8d4 rsyslog: curl-less build with fmhttp PACKAGECONFIG 179a1b9 gtest: update to 1.8.1 Squashed OpenBMC subtree compatibility updates: meta-aspeed: Brad Bishop (1): aspeed: add yocto 2.6 compatibility meta-ibm: Brad Bishop (1): ibm: prepare for yocto 2.6 meta-ingrasys: Brad Bishop (1): ingrasys: set layer compatibility to yocto 2.6 meta-openpower: Brad Bishop (1): openpower: set layer compatibility to yocto 2.6 meta-phosphor: Brad Bishop (3): phosphor: set layer compatibility to thud phosphor: libgpg-error: drop patches phosphor: react to fitimage artifact rename Ed Tanous (4): Dropbear: upgrade options for latest upgrade yocto2.6: update openssl options busybox: remove upstream watchdog patch systemd: Rebase CONFIG_CGROUP_BPF patch Change-Id: I7b1fe71cca880d0372a82d94b5fd785323e3a9e7 Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Diffstat (limited to 'meta-openembedded/meta-oe/recipes-connectivity/hostapd/hostapd/hostapd-CVE-2018-14526.patch')
-rw-r--r--meta-openembedded/meta-oe/recipes-connectivity/hostapd/hostapd/hostapd-CVE-2018-14526.patch44
1 files changed, 44 insertions, 0 deletions
diff --git a/meta-openembedded/meta-oe/recipes-connectivity/hostapd/hostapd/hostapd-CVE-2018-14526.patch b/meta-openembedded/meta-oe/recipes-connectivity/hostapd/hostapd/hostapd-CVE-2018-14526.patch
new file mode 100644
index 000000000..522fc394b
--- /dev/null
+++ b/meta-openembedded/meta-oe/recipes-connectivity/hostapd/hostapd/hostapd-CVE-2018-14526.patch
@@ -0,0 +1,44 @@
+hostapd-2.6: Fix CVE-2018-14526
+
+[No upstream tracking] -- https://w1.fi/security/2018-1/unauthenticated-eapol-key-decryption.txt
+
+wpa: Ignore unauthenticated encrypted EAPOL-Key data
+
+Ignore unauthenticated encrypted EAPOL-Key data in supplicant
+processing. When using WPA2, these are frames that have the Encrypted
+flag set, but not the MIC flag.
+
+When using WPA2, EAPOL-Key frames that had the Encrypted flag set but
+not the MIC flag, had their data field decrypted without first verifying
+the MIC. In case the data field was encrypted using RC4 (i.e., when
+negotiating TKIP as the pairwise cipher), this meant that
+unauthenticated but decrypted data would then be processed. An adversary
+could abuse this as a decryption oracle to recover sensitive information
+in the data field of EAPOL-Key messages (e.g., the group key).
+
+Upstream-Status: Backport [https://w1.fi/cgit/hostap/commit/src/rsn_supp/wpa.c?id=3e34cfdff6b192fe337c6fb3f487f73e96582961]
+CVE: CVE-2018-14526
+Signed-off-by: Andrej Valek <andrej.valek@siemens.com>
+
+diff --git a/src/rsn_supp/wpa.c b/src/rsn_supp/wpa.c
+index 3c47879..6bdf923 100644
+--- a/src/rsn_supp/wpa.c
++++ b/src/rsn_supp/wpa.c
+@@ -2016,6 +2016,17 @@ int wpa_sm_rx_eapol(struct wpa_sm *sm, const u8 *src_addr,
+
+ if ((sm->proto == WPA_PROTO_RSN || sm->proto == WPA_PROTO_OSEN) &&
+ (key_info & WPA_KEY_INFO_ENCR_KEY_DATA)) {
++ /*
++ * Only decrypt the Key Data field if the frame's authenticity
++ * was verified. When using AES-SIV (FILS), the MIC flag is not
++ * set, so this check should only be performed if mic_len != 0
++ * which is the case in this code branch.
++ */
++ if (!(key_info & WPA_KEY_INFO_MIC)) {
++ wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
++ "WPA: Ignore EAPOL-Key with encrypted but unauthenticated data");
++ goto out;
++ }
+ if (wpa_supplicant_decrypt_key_data(sm, key, ver, key_data,
+ &key_data_len))
+ goto out;
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