ipsec-tools: fix null dereference in racoon

* add a patch to fix a null pointer dereference in src/racoon/gssapi.c (CVE-2015-4047)
 * refresh patches
 * bumb release number

Signed-off-by: Nicolas Thill <nico@openwrt.org>

net/ipsec-tools/Makefile

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2006-2011 OpenWrt.org
+# Copyright (C) 2006-2015 OpenWrt.org
 #               2014 Noah Meyerhans <frodo@morgul.net>
 #
 # This is free software, licensed under the GNU General Public License v2.
@@ -11,7 +11,7 @@ include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=ipsec-tools
 PKG_VERSION:=0.8.2
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 PKG_MAINTAINER := "Noah Meyerhans <frodo@morgul.net>"
 PKG_LICENSE := BSD-3-Clause
 

net/ipsec-tools/patches/002-patch8-utmp.patch

@@ -9,7 +9,7 @@
  #if defined(__APPLE__) && defined(__MACH__)
  #include <util.h>
  #endif
-@@ -1661,7 +1661,8 @@ isakmp_cfg_accounting_system(port, raddr
+@@ -1664,7 +1664,8 @@ isakmp_cfg_accounting_system(port, raddr
  	int inout;
  {
  	int error = 0;
@@ -19,7 +19,7 @@
  	char addr[NI_MAXHOST];
  	
  	if (usr == NULL || usr[0]=='\0') {
-@@ -1670,34 +1671,37 @@ isakmp_cfg_accounting_system(port, raddr
+@@ -1673,34 +1674,37 @@ isakmp_cfg_accounting_system(port, raddr
  		return -1;
  	}
  

net/ipsec-tools/patches/003-microsoft-fqdn-in-main.patch

@@ -1,6 +1,6 @@
 --- a/src/racoon/ipsec_doi.c
 +++ b/src/racoon/ipsec_doi.c
-@@ -3582,8 +3582,8 @@ ipsecdoi_checkid1(iph1)
+@@ -3581,8 +3581,8 @@ ipsecdoi_checkid1(iph1)
  	    iph1->approval->authmethod == OAKLEY_ATTR_AUTH_METHOD_PSKEY) {
  		 if (id_b->type != IPSECDOI_ID_IPV4_ADDR
  		  && id_b->type != IPSECDOI_ID_IPV6_ADDR) {

net/ipsec-tools/patches/008-racoon-fix_dereference_crash.patch

@@ -0,0 +1,16 @@
+Fix null dereference in racoon/gssapi.c (CVE-2015-4047)
+
+--- a/src/racoon/gssapi.c
++++ b/src/racoon/gssapi.c
+@@ -192,6 +192,11 @@ gssapi_init(struct ph1handle *iph1)
+ 	gss_name_t princ, canon_princ;
+ 	OM_uint32 maj_stat, min_stat;
+ 
++	if (iph1->rmconf == NULL) {
++		plog(LLV_ERROR, LOCATION, NULL, "no remote config\n");
++		return -1;
++	}
++
+ 	gps = racoon_calloc(1, sizeof (struct gssapi_ph1_state));
+ 	if (gps == NULL) {
+ 		plog(LLV_ERROR, LOCATION, NULL, "racoon_calloc failed\n");