mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-24 21:38:07 -05:00
gnu: wpa-supplicant: Add fixes for CVE-2016-{4476,4477}.
* gnu/packages/patches/wpa-supplicant-CVE-2016-4476.patch, gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt1.patch, gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt2.patch, gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt3.patch, gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt4.patch: New files. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/admin.scm (wpa-supplicant-minimal)[source]: Add patches.
This commit is contained in:
Mark H Weaver
parent
4c6aa73b8f
commit
0a17fd7c0b
7 changed files with 338 additions and 1 deletions
|
|
@ -794,6 +794,11 @@ dist_patch_DATA = \
|
|||
gnu/packages/patches/wpa-supplicant-CVE-2015-5314.patch \
|
||||
gnu/packages/patches/wpa-supplicant-CVE-2015-5315.patch \
|
||||
gnu/packages/patches/wpa-supplicant-CVE-2015-5316.patch \
|
||||
gnu/packages/patches/wpa-supplicant-CVE-2016-4476.patch \
|
||||
gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt1.patch \
|
||||
gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt2.patch \
|
||||
gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt3.patch \
|
||||
gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt4.patch \
|
||||
gnu/packages/patches/xdotool-fix-makefile.patch \
|
||||
gnu/packages/patches/xf86-video-ark-remove-mibstore.patch \
|
||||
gnu/packages/patches/xf86-video-ast-remove-mibstore.patch \
|
||||
|
|
|
|||
|
|
@ -874,7 +874,12 @@ (define-public wpa-supplicant-minimal
|
|||
(search-patches "wpa-supplicant-CVE-2015-5310.patch"
|
||||
"wpa-supplicant-CVE-2015-5314.patch"
|
||||
"wpa-supplicant-CVE-2015-5315.patch"
|
||||
"wpa-supplicant-CVE-2015-5316.patch"))))
|
||||
"wpa-supplicant-CVE-2015-5316.patch"
|
||||
"wpa-supplicant-CVE-2016-4476.patch"
|
||||
"wpa-supplicant-CVE-2016-4477-pt1.patch"
|
||||
"wpa-supplicant-CVE-2016-4477-pt2.patch"
|
||||
"wpa-supplicant-CVE-2016-4477-pt3.patch"
|
||||
"wpa-supplicant-CVE-2016-4477-pt4.patch"))))
|
||||
(build-system gnu-build-system)
|
||||
(arguments
|
||||
'(#:phases (alist-replace
|
||||
|
|
|
|||
82
gnu/packages/patches/wpa-supplicant-CVE-2016-4476.patch
Normal file
82
gnu/packages/patches/wpa-supplicant-CVE-2016-4476.patch
Normal file
|
|
@ -0,0 +1,82 @@
|
|||
From ecbb0b3dc122b0d290987cf9c84010bbe53e1022 Mon Sep 17 00:00:00 2001
|
||||
From: Jouni Malinen <jouni@qca.qualcomm.com>
|
||||
Date: Fri, 4 Mar 2016 17:20:18 +0200
|
||||
Subject: [PATCH 1/5] WPS: Reject a Credential with invalid passphrase
|
||||
|
||||
WPA/WPA2-Personal passphrase is not allowed to include control
|
||||
characters. Reject a Credential received from a WPS Registrar both as
|
||||
STA (Credential) and AP (AP Settings) if the credential is for WPAPSK or
|
||||
WPA2PSK authentication type and includes an invalid passphrase.
|
||||
|
||||
This fixes an issue where hostapd or wpa_supplicant could have updated
|
||||
the configuration file PSK/passphrase parameter with arbitrary data from
|
||||
an external device (Registrar) that may not be fully trusted. Should
|
||||
such data include a newline character, the resulting configuration file
|
||||
could become invalid and fail to be parsed.
|
||||
|
||||
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
|
||||
---
|
||||
src/utils/common.c | 12 ++++++++++++
|
||||
src/utils/common.h | 1 +
|
||||
src/wps/wps_attr_process.c | 10 ++++++++++
|
||||
3 files changed, 23 insertions(+)
|
||||
|
||||
diff --git a/src/utils/common.c b/src/utils/common.c
|
||||
index 450e2c6..27b7c02 100644
|
||||
--- a/src/utils/common.c
|
||||
+++ b/src/utils/common.c
|
||||
@@ -697,6 +697,18 @@ int is_hex(const u8 *data, size_t len)
|
||||
}
|
||||
|
||||
|
||||
+int has_ctrl_char(const u8 *data, size_t len)
|
||||
+{
|
||||
+ size_t i;
|
||||
+
|
||||
+ for (i = 0; i < len; i++) {
|
||||
+ if (data[i] < 32 || data[i] == 127)
|
||||
+ return 1;
|
||||
+ }
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+
|
||||
size_t merge_byte_arrays(u8 *res, size_t res_len,
|
||||
const u8 *src1, size_t src1_len,
|
||||
const u8 *src2, size_t src2_len)
|
||||
diff --git a/src/utils/common.h b/src/utils/common.h
|
||||
index 701dbb2..a972240 100644
|
||||
--- a/src/utils/common.h
|
||||
+++ b/src/utils/common.h
|
||||
@@ -488,6 +488,7 @@ const char * wpa_ssid_txt(const u8 *ssid, size_t ssid_len);
|
||||
|
||||
char * wpa_config_parse_string(const char *value, size_t *len);
|
||||
int is_hex(const u8 *data, size_t len);
|
||||
+int has_ctrl_char(const u8 *data, size_t len);
|
||||
size_t merge_byte_arrays(u8 *res, size_t res_len,
|
||||
const u8 *src1, size_t src1_len,
|
||||
const u8 *src2, size_t src2_len);
|
||||
diff --git a/src/wps/wps_attr_process.c b/src/wps/wps_attr_process.c
|
||||
index eadb22f..e8c4579 100644
|
||||
--- a/src/wps/wps_attr_process.c
|
||||
+++ b/src/wps/wps_attr_process.c
|
||||
@@ -229,6 +229,16 @@ static int wps_workaround_cred_key(struct wps_credential *cred)
|
||||
cred->key_len--;
|
||||
#endif /* CONFIG_WPS_STRICT */
|
||||
}
|
||||
+
|
||||
+
|
||||
+ if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK) &&
|
||||
+ (cred->key_len < 8 || has_ctrl_char(cred->key, cred->key_len))) {
|
||||
+ wpa_printf(MSG_INFO, "WPS: Reject credential with invalid WPA/WPA2-Personal passphrase");
|
||||
+ wpa_hexdump_ascii_key(MSG_INFO, "WPS: Network Key",
|
||||
+ cred->key, cred->key_len);
|
||||
+ return -1;
|
||||
+ }
|
||||
+
|
||||
return 0;
|
||||
}
|
||||
|
||||
--
|
||||
1.9.1
|
||||
|
||||
51
gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt1.patch
Normal file
51
gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt1.patch
Normal file
|
|
@ -0,0 +1,51 @@
|
|||
From 73e4abb24a936014727924d8b0b2965edfc117dd Mon Sep 17 00:00:00 2001
|
||||
From: Jouni Malinen <jouni@qca.qualcomm.com>
|
||||
Date: Fri, 4 Mar 2016 18:46:41 +0200
|
||||
Subject: [PATCH 2/5] Reject psk parameter set with invalid passphrase
|
||||
character
|
||||
|
||||
WPA/WPA2-Personal passphrase is not allowed to include control
|
||||
characters. Reject a passphrase configuration attempt if that passphrase
|
||||
includes an invalid passphrase.
|
||||
|
||||
This fixes an issue where wpa_supplicant could have updated the
|
||||
configuration file psk parameter with arbitrary data from the control
|
||||
interface or D-Bus interface. While those interfaces are supposed to be
|
||||
accessible only for trusted users/applications, it may be possible that
|
||||
an untrusted user has access to a management software component that
|
||||
does not validate the passphrase value before passing it to
|
||||
wpa_supplicant.
|
||||
|
||||
This could allow such an untrusted user to inject up to 63 characters of
|
||||
almost arbitrary data into the configuration file. Such configuration
|
||||
file could result in wpa_supplicant trying to load a library (e.g.,
|
||||
opensc_engine_path, pkcs11_engine_path, pkcs11_module_path,
|
||||
load_dynamic_eap) from user controlled location when starting again.
|
||||
This would allow code from that library to be executed under the
|
||||
wpa_supplicant process privileges.
|
||||
|
||||
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
|
||||
---
|
||||
wpa_supplicant/config.c | 6 ++++++
|
||||
1 file changed, 6 insertions(+)
|
||||
|
||||
diff --git a/wpa_supplicant/config.c b/wpa_supplicant/config.c
|
||||
index b1c7870..fdd9643 100644
|
||||
--- a/wpa_supplicant/config.c
|
||||
+++ b/wpa_supplicant/config.c
|
||||
@@ -478,6 +478,12 @@ static int wpa_config_parse_psk(const struct parse_data *data,
|
||||
}
|
||||
wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
|
||||
(u8 *) value, len);
|
||||
+ if (has_ctrl_char((u8 *) value, len)) {
|
||||
+ wpa_printf(MSG_ERROR,
|
||||
+ "Line %d: Invalid passphrase character",
|
||||
+ line);
|
||||
+ return -1;
|
||||
+ }
|
||||
if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
|
||||
os_memcmp(ssid->passphrase, value, len) == 0) {
|
||||
/* No change to the previously configured value */
|
||||
--
|
||||
1.9.1
|
||||
|
||||
82
gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt2.patch
Normal file
82
gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt2.patch
Normal file
|
|
@ -0,0 +1,82 @@
|
|||
From 0fe5a234240a108b294a87174ad197f6b5cb38e9 Mon Sep 17 00:00:00 2001
|
||||
From: Paul Stewart <pstew@google.com>
|
||||
Date: Thu, 3 Mar 2016 15:40:19 -0800
|
||||
Subject: [PATCH 3/5] Remove newlines from wpa_supplicant config network
|
||||
output
|
||||
|
||||
Spurious newlines output while writing the config file can corrupt the
|
||||
wpa_supplicant configuration. Avoid writing these for the network block
|
||||
parameters. This is a generic filter that cover cases that may not have
|
||||
been explicitly addressed with a more specific commit to avoid control
|
||||
characters in the psk parameter.
|
||||
|
||||
Signed-off-by: Paul Stewart <pstew@google.com>
|
||||
---
|
||||
src/utils/common.c | 11 +++++++++++
|
||||
src/utils/common.h | 1 +
|
||||
wpa_supplicant/config.c | 15 +++++++++++++--
|
||||
3 files changed, 25 insertions(+), 2 deletions(-)
|
||||
|
||||
diff --git a/src/utils/common.c b/src/utils/common.c
|
||||
index 27b7c02..9856463 100644
|
||||
--- a/src/utils/common.c
|
||||
+++ b/src/utils/common.c
|
||||
@@ -709,6 +709,17 @@ int has_ctrl_char(const u8 *data, size_t len)
|
||||
}
|
||||
|
||||
|
||||
+int has_newline(const char *str)
|
||||
+{
|
||||
+ while (*str) {
|
||||
+ if (*str == '\n' || *str == '\r')
|
||||
+ return 1;
|
||||
+ str++;
|
||||
+ }
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+
|
||||
size_t merge_byte_arrays(u8 *res, size_t res_len,
|
||||
const u8 *src1, size_t src1_len,
|
||||
const u8 *src2, size_t src2_len)
|
||||
diff --git a/src/utils/common.h b/src/utils/common.h
|
||||
index a972240..d19927b 100644
|
||||
--- a/src/utils/common.h
|
||||
+++ b/src/utils/common.h
|
||||
@@ -489,6 +489,7 @@ const char * wpa_ssid_txt(const u8 *ssid, size_t ssid_len);
|
||||
char * wpa_config_parse_string(const char *value, size_t *len);
|
||||
int is_hex(const u8 *data, size_t len);
|
||||
int has_ctrl_char(const u8 *data, size_t len);
|
||||
+int has_newline(const char *str);
|
||||
size_t merge_byte_arrays(u8 *res, size_t res_len,
|
||||
const u8 *src1, size_t src1_len,
|
||||
const u8 *src2, size_t src2_len);
|
||||
diff --git a/wpa_supplicant/config.c b/wpa_supplicant/config.c
|
||||
index fdd9643..eb97cd5 100644
|
||||
--- a/wpa_supplicant/config.c
|
||||
+++ b/wpa_supplicant/config.c
|
||||
@@ -2699,8 +2699,19 @@ char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
|
||||
|
||||
for (i = 0; i < NUM_SSID_FIELDS; i++) {
|
||||
const struct parse_data *field = &ssid_fields[i];
|
||||
- if (os_strcmp(var, field->name) == 0)
|
||||
- return field->writer(field, ssid);
|
||||
+ if (os_strcmp(var, field->name) == 0) {
|
||||
+ char *ret = field->writer(field, ssid);
|
||||
+
|
||||
+ if (ret && has_newline(ret)) {
|
||||
+ wpa_printf(MSG_ERROR,
|
||||
+ "Found newline in value for %s; not returning it",
|
||||
+ var);
|
||||
+ os_free(ret);
|
||||
+ ret = NULL;
|
||||
+ }
|
||||
+
|
||||
+ return ret;
|
||||
+ }
|
||||
}
|
||||
|
||||
return NULL;
|
||||
--
|
||||
1.9.1
|
||||
|
||||
62
gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt3.patch
Normal file
62
gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt3.patch
Normal file
|
|
@ -0,0 +1,62 @@
|
|||
From b166cd84a77a6717be9600bf95378a0055d6f5a5 Mon Sep 17 00:00:00 2001
|
||||
From: Jouni Malinen <jouni@qca.qualcomm.com>
|
||||
Date: Tue, 5 Apr 2016 23:33:10 +0300
|
||||
Subject: [PATCH 4/5] Reject SET_CRED commands with newline characters in the
|
||||
string values
|
||||
|
||||
Most of the cred block parameters are written as strings without
|
||||
filtering and if there is an embedded newline character in the value,
|
||||
unexpected configuration file data might be written.
|
||||
|
||||
This fixes an issue where wpa_supplicant could have updated the
|
||||
configuration file cred parameter with arbitrary data from the control
|
||||
interface or D-Bus interface. While those interfaces are supposed to be
|
||||
accessible only for trusted users/applications, it may be possible that
|
||||
an untrusted user has access to a management software component that
|
||||
does not validate the credential value before passing it to
|
||||
wpa_supplicant.
|
||||
|
||||
This could allow such an untrusted user to inject almost arbitrary data
|
||||
into the configuration file. Such configuration file could result in
|
||||
wpa_supplicant trying to load a library (e.g., opensc_engine_path,
|
||||
pkcs11_engine_path, pkcs11_module_path, load_dynamic_eap) from user
|
||||
controlled location when starting again. This would allow code from that
|
||||
library to be executed under the wpa_supplicant process privileges.
|
||||
|
||||
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
|
||||
---
|
||||
wpa_supplicant/config.c | 9 ++++++++-
|
||||
1 file changed, 8 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/wpa_supplicant/config.c b/wpa_supplicant/config.c
|
||||
index eb97cd5..69152ef 100644
|
||||
--- a/wpa_supplicant/config.c
|
||||
+++ b/wpa_supplicant/config.c
|
||||
@@ -2896,6 +2896,8 @@ int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
|
||||
|
||||
if (os_strcmp(var, "password") == 0 &&
|
||||
os_strncmp(value, "ext:", 4) == 0) {
|
||||
+ if (has_newline(value))
|
||||
+ return -1;
|
||||
str_clear_free(cred->password);
|
||||
cred->password = os_strdup(value);
|
||||
cred->ext_password = 1;
|
||||
@@ -2946,9 +2948,14 @@ int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
|
||||
}
|
||||
|
||||
val = wpa_config_parse_string(value, &len);
|
||||
- if (val == NULL) {
|
||||
+ if (val == NULL ||
|
||||
+ (os_strcmp(var, "excluded_ssid") != 0 &&
|
||||
+ os_strcmp(var, "roaming_consortium") != 0 &&
|
||||
+ os_strcmp(var, "required_roaming_consortium") != 0 &&
|
||||
+ has_newline(val))) {
|
||||
wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
|
||||
"value '%s'.", line, var, value);
|
||||
+ os_free(val);
|
||||
return -1;
|
||||
}
|
||||
|
||||
--
|
||||
1.9.1
|
||||
|
||||
50
gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt4.patch
Normal file
50
gnu/packages/patches/wpa-supplicant-CVE-2016-4477-pt4.patch
Normal file
|
|
@ -0,0 +1,50 @@
|
|||
From 2a3f56502b52375c3bf113cf92adfa99bad6b488 Mon Sep 17 00:00:00 2001
|
||||
From: Jouni Malinen <jouni@qca.qualcomm.com>
|
||||
Date: Tue, 5 Apr 2016 23:55:48 +0300
|
||||
Subject: [PATCH 5/5] Reject SET commands with newline characters in the
|
||||
string values
|
||||
|
||||
Many of the global configuration parameters are written as strings
|
||||
without filtering and if there is an embedded newline character in the
|
||||
value, unexpected configuration file data might be written.
|
||||
|
||||
This fixes an issue where wpa_supplicant could have updated the
|
||||
configuration file global parameter with arbitrary data from the control
|
||||
interface or D-Bus interface. While those interfaces are supposed to be
|
||||
accessible only for trusted users/applications, it may be possible that
|
||||
an untrusted user has access to a management software component that
|
||||
does not validate the value of a parameter before passing it to
|
||||
wpa_supplicant.
|
||||
|
||||
This could allow such an untrusted user to inject almost arbitrary data
|
||||
into the configuration file. Such configuration file could result in
|
||||
wpa_supplicant trying to load a library (e.g., opensc_engine_path,
|
||||
pkcs11_engine_path, pkcs11_module_path, load_dynamic_eap) from user
|
||||
controlled location when starting again. This would allow code from that
|
||||
library to be executed under the wpa_supplicant process privileges.
|
||||
|
||||
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
|
||||
---
|
||||
wpa_supplicant/config.c | 6 ++++++
|
||||
1 file changed, 6 insertions(+)
|
||||
|
||||
diff --git a/wpa_supplicant/config.c b/wpa_supplicant/config.c
|
||||
index 69152ef..d9a1603 100644
|
||||
--- a/wpa_supplicant/config.c
|
||||
+++ b/wpa_supplicant/config.c
|
||||
@@ -3764,6 +3764,12 @@ static int wpa_global_config_parse_str(const struct global_parse_data *data,
|
||||
return -1;
|
||||
}
|
||||
|
||||
+ if (has_newline(pos)) {
|
||||
+ wpa_printf(MSG_ERROR, "Line %d: invalid %s value with newline",
|
||||
+ line, data->name);
|
||||
+ return -1;
|
||||
+ }
|
||||
+
|
||||
tmp = os_strdup(pos);
|
||||
if (tmp == NULL)
|
||||
return -1;
|
||||
--
|
||||
1.9.1
|
||||
|
||||
Loading…
Reference in a new issue