diff options
Diffstat (limited to 'package/network/services/hostapd/patches/011-EAP-pwd-peer-Fix-last-fragment-length-validation.patch')
| -rw-r--r-- | package/network/services/hostapd/patches/011-EAP-pwd-peer-Fix-last-fragment-length-validation.patch | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/package/network/services/hostapd/patches/011-EAP-pwd-peer-Fix-last-fragment-length-validation.patch b/package/network/services/hostapd/patches/011-EAP-pwd-peer-Fix-last-fragment-length-validation.patch deleted file mode 100644 index 82c26398b6..0000000000 --- a/package/network/services/hostapd/patches/011-EAP-pwd-peer-Fix-last-fragment-length-validation.patch +++ /dev/null @@ -1,54 +0,0 @@ -From 8057821706784608b828e769ccefbced95591e50 Mon Sep 17 00:00:00 2001 -From: Jouni Malinen <j@w1.fi> -Date: Sun, 1 Nov 2015 18:18:17 +0200 -Subject: [PATCH] EAP-pwd peer: Fix last fragment length validation - -All but the last fragment had their length checked against the remaining -room in the reassembly buffer. This allowed a suitably constructed last -fragment frame to try to add extra data that would go beyond the buffer. -The length validation code in wpabuf_put_data() prevents an actual -buffer write overflow from occurring, but this results in process -termination. (CVE-2015-5315) - -Signed-off-by: Jouni Malinen <j@w1.fi> ---- - src/eap_peer/eap_pwd.c | 7 +++---- - 1 file changed, 3 insertions(+), 4 deletions(-) - -diff --git a/src/eap_peer/eap_pwd.c b/src/eap_peer/eap_pwd.c -index 1f78544..75ceef1 100644 ---- a/src/eap_peer/eap_pwd.c -+++ b/src/eap_peer/eap_pwd.c -@@ -903,7 +903,7 @@ eap_pwd_process(struct eap_sm *sm, void *priv, struct eap_method_ret *ret, - /* - * buffer and ACK the fragment - */ -- if (EAP_PWD_GET_MORE_BIT(lm_exch)) { -+ if (EAP_PWD_GET_MORE_BIT(lm_exch) || data->in_frag_pos) { - data->in_frag_pos += len; - if (data->in_frag_pos > wpabuf_size(data->inbuf)) { - wpa_printf(MSG_INFO, "EAP-pwd: Buffer overflow attack " -@@ -916,7 +916,8 @@ eap_pwd_process(struct eap_sm *sm, void *priv, struct eap_method_ret *ret, - return NULL; - } - wpabuf_put_data(data->inbuf, pos, len); -- -+ } -+ if (EAP_PWD_GET_MORE_BIT(lm_exch)) { - resp = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_PWD, - EAP_PWD_HDR_SIZE, - EAP_CODE_RESPONSE, eap_get_id(reqData)); -@@ -930,10 +931,8 @@ eap_pwd_process(struct eap_sm *sm, void *priv, struct eap_method_ret *ret, - * we're buffering and this is the last fragment - */ - if (data->in_frag_pos) { -- wpabuf_put_data(data->inbuf, pos, len); - wpa_printf(MSG_DEBUG, "EAP-pwd: Last fragment, %d bytes", - (int) len); -- data->in_frag_pos += len; - pos = wpabuf_head_u8(data->inbuf); - len = data->in_frag_pos; - } --- -1.9.1 - |