wpa_supplicant: bump to version 2.5
Remove upstream patches. Renumber the remaining patch. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Baruch Siach
Peter Korsgaard
parent
1639a7ebfa
commit
bac20afec5
@ -1,45 +0,0 @@
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From 9ed4eee345f85e3025c33c6e20aa25696e341ccd Mon Sep 17 00:00:00 2001
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From: Jouni Malinen <jouni@qca.qualcomm.com>
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Date: Tue, 7 Apr 2015 11:32:11 +0300
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Subject: [PATCH] P2P: Validate SSID element length before copying it
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(CVE-2015-1863)
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Upstream commit 9ed4eee345f85e3025c33c6e20aa25696e341ccd.
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This fixes a possible memcpy overflow for P2P dev->oper_ssid in
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p2p_add_device(). The length provided by the peer device (0..255 bytes)
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was used without proper bounds checking and that could have resulted in
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arbitrary data of up to 223 bytes being written beyond the end of the
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dev->oper_ssid[] array (of which about 150 bytes would be beyond the
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heap allocation) when processing a corrupted management frame for P2P
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peer discovery purposes.
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This could result in corrupted state in heap, unexpected program
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behavior due to corrupted P2P peer device information, denial of service
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due to process crash, exposure of memory contents during GO Negotiation,
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and potentially arbitrary code execution.
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Thanks to Google security team for reporting this issue and smart
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hardware research group of Alibaba security team for discovering it.
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Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
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---
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src/p2p/p2p.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/src/p2p/p2p.c b/src/p2p/p2p.c
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index f584fae..a45fe73 100644
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--- a/src/p2p/p2p.c
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+++ b/src/p2p/p2p.c
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@@ -778,6 +778,7 @@ int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
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if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
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os_memcpy(dev->interface_addr, addr, ETH_ALEN);
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if (msg.ssid &&
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+ msg.ssid[1] <= sizeof(dev->oper_ssid) &&
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(msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
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os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
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!= 0)) {
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--
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1.9.1
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@ -1,50 +0,0 @@
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From 5acd23f4581da58683f3cf5e36cb71bbe4070bd7 Mon Sep 17 00:00:00 2001
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From: Jouni Malinen <j@w1.fi>
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Date: Tue, 28 Apr 2015 17:08:33 +0300
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Subject: [PATCH] WPS: Fix HTTP chunked transfer encoding parser
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strtoul() return value may end up overflowing the int h->chunk_size and
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resulting in a negative value to be stored as the chunk_size. This could
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result in the following memcpy operation using a very large length
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argument which would result in a buffer overflow and segmentation fault.
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This could have been used to cause a denial service by any device that
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has been authorized for network access (either wireless or wired). This
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would affect both the WPS UPnP functionality in a WPS AP (hostapd with
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upnp_iface parameter set in the configuration) and WPS ER
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(wpa_supplicant with WPS_ER_START control interface command used).
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Validate the parsed chunk length value to avoid this. In addition to
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rejecting negative values, we can also reject chunk size that would be
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larger than the maximum configured body length.
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Thanks to Kostya Kortchinsky of Google security team for discovering and
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reporting this issue.
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Signed-off-by: Jouni Malinen <j@w1.fi>
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
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---
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src/wps/httpread.c | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/src/wps/httpread.c b/src/wps/httpread.c
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index 2f08f37275c0..d2855e32fd0f 100644
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--- a/src/wps/httpread.c
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+++ b/src/wps/httpread.c
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@@ -533,6 +533,13 @@ static void httpread_read_handler(int sd, void *eloop_ctx, void *sock_ctx)
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if (!isxdigit(*cbp))
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goto bad;
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h->chunk_size = strtoul(cbp, NULL, 16);
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+ if (h->chunk_size < 0 ||
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+ h->chunk_size > h->max_bytes) {
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+ wpa_printf(MSG_DEBUG,
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+ "httpread: Invalid chunk size %d",
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+ h->chunk_size);
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+ goto bad;
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+ }
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/* throw away chunk header
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* so we have only real data
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*/
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--
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2.1.4
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@ -1,42 +0,0 @@
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From ef566a4d4f74022e1fdb0a2addfe81e6de9f4aae Mon Sep 17 00:00:00 2001
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From: Jouni Malinen <j@w1.fi>
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Date: Wed, 29 Apr 2015 02:21:53 +0300
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Subject: [PATCH] AP WMM: Fix integer underflow in WMM Action frame parser
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The length of the WMM Action frame was not properly validated and the
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length of the information elements (int left) could end up being
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negative. This would result in reading significantly past the stack
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buffer while parsing the IEs in ieee802_11_parse_elems() and while doing
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so, resulting in segmentation fault.
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This can result in an invalid frame being used for a denial of service
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attack (hostapd process killed) against an AP with a driver that uses
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hostapd for management frame processing (e.g., all mac80211-based
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drivers).
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Thanks to Kostya Kortchinsky of Google security team for discovering and
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reporting this issue.
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Signed-off-by: Jouni Malinen <j@w1.fi>
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
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---
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src/ap/wmm.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/src/ap/wmm.c b/src/ap/wmm.c
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index 6d4177c2a847..314e244bc956 100644
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--- a/src/ap/wmm.c
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+++ b/src/ap/wmm.c
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@@ -274,6 +274,9 @@ void hostapd_wmm_action(struct hostapd_data *hapd,
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return;
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}
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+ if (left < 0)
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+ return; /* not a valid WMM Action frame */
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+
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/* extract the tspec info element */
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if (ieee802_11_parse_elems(pos, left, &elems, 1) == ParseFailed) {
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hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
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--
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2.1.4
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@ -1,154 +0,0 @@
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This patch combines the following upstream security fixes:
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28a069a545b0 EAP-pwd peer: Fix asymmetric fragmentation behavior
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3035cc2894e0 EAP-pwd server: Fix Total-Length parsing for fragment reassembly
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477c74395acd EAP-pwd peer: Fix Total-Length parsing for fragment reassembly
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e28a58be2618 EAP-pwd server: Fix payload length validation for Commit and Confirm
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dd2f043c9c43 EAP-pwd peer: Fix payload length validation for Commit and Confirm
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Details at
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http://w1.fi/security/2015-4/eap-pwd-missing-payload-length-validation.txt
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
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---
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diff --git a/src/eap_peer/eap_pwd.c b/src/eap_peer/eap_pwd.c
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index f2b092669a42..e58b13a42f73 100644
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--- a/src/eap_peer/eap_pwd.c
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+++ b/src/eap_peer/eap_pwd.c
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@@ -355,6 +355,23 @@ eap_pwd_perform_commit_exchange(struct eap_sm *sm, struct eap_pwd_data *data,
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BIGNUM *mask = NULL, *x = NULL, *y = NULL, *cofactor = NULL;
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u16 offset;
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u8 *ptr, *scalar = NULL, *element = NULL;
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+ size_t prime_len, order_len;
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+
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+ if (data->state != PWD_Commit_Req) {
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+ ret->ignore = TRUE;
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+ goto fin;
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+ }
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+
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+ prime_len = BN_num_bytes(data->grp->prime);
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+ order_len = BN_num_bytes(data->grp->order);
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+
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+ if (payload_len != 2 * prime_len + order_len) {
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+ wpa_printf(MSG_INFO,
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+ "EAP-pwd: Unexpected Commit payload length %u (expected %u)",
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+ (unsigned int) payload_len,
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+ (unsigned int) (2 * prime_len + order_len));
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+ goto fin;
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+ }
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if (((data->private_value = BN_new()) == NULL) ||
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((data->my_element = EC_POINT_new(data->grp->group)) == NULL) ||
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@@ -554,6 +571,18 @@ eap_pwd_perform_confirm_exchange(struct eap_sm *sm, struct eap_pwd_data *data,
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u8 conf[SHA256_MAC_LEN], *cruft = NULL, *ptr;
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int offset;
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+ if (data->state != PWD_Confirm_Req) {
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+ ret->ignore = TRUE;
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+ goto fin;
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+ }
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+
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+ if (payload_len != SHA256_MAC_LEN) {
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+ wpa_printf(MSG_INFO,
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+ "EAP-pwd: Unexpected Confirm payload length %u (expected %u)",
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+ (unsigned int) payload_len, SHA256_MAC_LEN);
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+ goto fin;
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+ }
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+
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/*
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* first build up the ciphersuite which is group | random_function |
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* prf
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@@ -837,11 +866,23 @@ eap_pwd_process(struct eap_sm *sm, void *priv, struct eap_method_ret *ret,
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* if it's the first fragment there'll be a length field
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*/
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if (EAP_PWD_GET_LENGTH_BIT(lm_exch)) {
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+ if (len < 2) {
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+ wpa_printf(MSG_DEBUG,
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+ "EAP-pwd: Frame too short to contain Total-Length field");
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+ ret->ignore = TRUE;
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+ return NULL;
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+ }
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tot_len = WPA_GET_BE16(pos);
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wpa_printf(MSG_DEBUG, "EAP-pwd: Incoming fragments whose "
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"total length = %d", tot_len);
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if (tot_len > 15000)
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return NULL;
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+ if (data->inbuf) {
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+ wpa_printf(MSG_DEBUG,
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+ "EAP-pwd: Unexpected new fragment start when previous fragment is still in use");
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+ ret->ignore = TRUE;
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+ return NULL;
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+ }
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data->inbuf = wpabuf_alloc(tot_len);
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if (data->inbuf == NULL) {
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wpa_printf(MSG_INFO, "Out of memory to buffer "
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@@ -927,6 +968,7 @@ eap_pwd_process(struct eap_sm *sm, void *priv, struct eap_method_ret *ret,
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/*
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* we have output! Do we need to fragment it?
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*/
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+ lm_exch = EAP_PWD_GET_EXCHANGE(lm_exch);
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len = wpabuf_len(data->outbuf);
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if ((len + EAP_PWD_HDR_SIZE) > data->mtu) {
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resp = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_PWD, data->mtu,
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diff --git a/src/eap_server/eap_server_pwd.c b/src/eap_server/eap_server_pwd.c
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index 66bd5d2e9179..2bfc3c27647d 100644
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--- a/src/eap_server/eap_server_pwd.c
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+++ b/src/eap_server/eap_server_pwd.c
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@@ -656,9 +656,21 @@ eap_pwd_process_commit_resp(struct eap_sm *sm, struct eap_pwd_data *data,
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BIGNUM *x = NULL, *y = NULL, *cofactor = NULL;
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EC_POINT *K = NULL, *point = NULL;
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int res = 0;
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+ size_t prime_len, order_len;
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wpa_printf(MSG_DEBUG, "EAP-pwd: Received commit response");
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+ prime_len = BN_num_bytes(data->grp->prime);
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+ order_len = BN_num_bytes(data->grp->order);
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+
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+ if (payload_len != 2 * prime_len + order_len) {
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+ wpa_printf(MSG_INFO,
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+ "EAP-pwd: Unexpected Commit payload length %u (expected %u)",
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+ (unsigned int) payload_len,
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+ (unsigned int) (2 * prime_len + order_len));
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+ goto fin;
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+ }
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+
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if (((data->peer_scalar = BN_new()) == NULL) ||
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((data->k = BN_new()) == NULL) ||
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((cofactor = BN_new()) == NULL) ||
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@@ -774,6 +786,13 @@ eap_pwd_process_confirm_resp(struct eap_sm *sm, struct eap_pwd_data *data,
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u8 conf[SHA256_MAC_LEN], *cruft = NULL, *ptr;
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int offset;
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+ if (payload_len != SHA256_MAC_LEN) {
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+ wpa_printf(MSG_INFO,
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+ "EAP-pwd: Unexpected Confirm payload length %u (expected %u)",
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+ (unsigned int) payload_len, SHA256_MAC_LEN);
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+ goto fin;
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+ }
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+
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/* build up the ciphersuite: group | random_function | prf */
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grp = htons(data->group_num);
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ptr = (u8 *) &cs;
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@@ -923,11 +942,21 @@ static void eap_pwd_process(struct eap_sm *sm, void *priv,
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* the first fragment has a total length
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*/
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if (EAP_PWD_GET_LENGTH_BIT(lm_exch)) {
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+ if (len < 2) {
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+ wpa_printf(MSG_DEBUG,
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+ "EAP-pwd: Frame too short to contain Total-Length field");
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+ return;
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+ }
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tot_len = WPA_GET_BE16(pos);
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wpa_printf(MSG_DEBUG, "EAP-pwd: Incoming fragments, total "
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"length = %d", tot_len);
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if (tot_len > 15000)
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return;
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+ if (data->inbuf) {
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+ wpa_printf(MSG_DEBUG,
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+ "EAP-pwd: Unexpected new fragment start when previous fragment is still in use");
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+ return;
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+ }
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data->inbuf = wpabuf_alloc(tot_len);
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if (data->inbuf == NULL) {
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wpa_printf(MSG_INFO, "EAP-pwd: Out of memory to "
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@ -1,2 +1,2 @@
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# Locally calculated
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sha256 058dc832c096139a059e6df814080f50251a8d313c21b13364c54a1e70109122 wpa_supplicant-2.4.tar.gz
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sha256 cce55bae483b364eae55c35ba567c279be442ed8bab5b80a3c7fb0d057b9b316 wpa_supplicant-2.5.tar.gz
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@ -4,7 +4,7 @@
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#
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################################################################################
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WPA_SUPPLICANT_VERSION = 2.4
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WPA_SUPPLICANT_VERSION = 2.5
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WPA_SUPPLICANT_SITE = http://hostap.epitest.fi/releases
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WPA_SUPPLICANT_LICENSE = GPLv2/BSD-3c
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WPA_SUPPLICANT_LICENSE_FILES = README
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