strongswan: add security patches
Security patches to fix CVE-2013-5018, CVE-2013-6075 and CVE-2013-6076. Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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package/strongswan/strongswan-0003-CVE-2013-5018-fix.patch
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package/strongswan/strongswan-0003-CVE-2013-5018-fix.patch
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From 057265e0183ddf52d56f21adaf0db0f3dc6585a4 Mon Sep 17 00:00:00 2001
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From: Tobias Brunner <tobias@strongswan.org>
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Date: Mon, 29 Jul 2013 23:45:38 +0200
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Subject: [PATCH] asn1: Fix handling of invalid ASN.1 length in is_asn1()
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Fixes CVE-2013-5018.
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---
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src/libstrongswan/asn1/asn1.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/src/libstrongswan/asn1/asn1.c b/src/libstrongswan/asn1/asn1.c
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index 68f37f4..d860ad9 100644
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--- a/src/libstrongswan/asn1/asn1.c
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+++ b/src/libstrongswan/asn1/asn1.c
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@@ -642,6 +642,11 @@ bool is_asn1(chunk_t blob)
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len = asn1_length(&blob);
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+ if (len == ASN1_INVALID_LENGTH)
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+ {
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+ return FALSE;
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+ }
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+
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/* exact match */
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if (len == blob.len)
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{
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--
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1.7.10.4
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package/strongswan/strongswan-0004-CVE-2013-6075-fix.patch
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package/strongswan/strongswan-0004-CVE-2013-6075-fix.patch
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From aa277adfc204b6bda2c3792710138f9a8723a8f1 Mon Sep 17 00:00:00 2001
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From: Martin Willi <martin@revosec.ch>
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Date: Mon, 7 Oct 2013 14:21:57 +0200
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Subject: [PATCH] identification: Properly check length before comparing for
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binary DN equality
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Fixes CVE-2013-6075.
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---
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src/libstrongswan/utils/identification.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/libstrongswan/utils/identification.c b/src/libstrongswan/utils/identification.c
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index 5df3e5f..9c43ad5 100644
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--- a/src/libstrongswan/utils/identification.c
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+++ b/src/libstrongswan/utils/identification.c
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@@ -602,7 +602,7 @@ static bool compare_dn(chunk_t t_dn, chunk_t o_dn, int *wc)
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}
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}
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/* try a binary compare */
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- if (memeq(t_dn.ptr, o_dn.ptr, t_dn.len))
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+ if (chunk_equals(t_dn, o_dn))
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{
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return TRUE;
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}
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--
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1.8.1.2
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package/strongswan/strongswan-0005-CVE-2013-6076-fix.patch
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package/strongswan/strongswan-0005-CVE-2013-6076-fix.patch
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From d8867a8452eece3fffab29605f48e6bed47c42d4 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Volker=20R=C3=BCmelin?= <vr_strongswan@t-online.de>
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Date: Fri, 11 Oct 2013 09:38:24 +0200
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Subject: [PATCH] ikev1: Properly initialize list of fragments in case fragment
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ID is 0
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Fixes CVE-2013-6076.
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---
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src/libcharon/sa/ikev1/task_manager_v1.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/libcharon/sa/ikev1/task_manager_v1.c b/src/libcharon/sa/ikev1/task_manager_v1.c
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index 6d4ef14..597416e 100644
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--- a/src/libcharon/sa/ikev1/task_manager_v1.c
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+++ b/src/libcharon/sa/ikev1/task_manager_v1.c
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@@ -1273,7 +1273,7 @@ static status_t handle_fragment(private_task_manager_t *this, message_t *msg)
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return FAILED;
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}
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- if (this->frag.id != payload->get_id(payload))
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+ if (!this->frag.list || this->frag.id != payload->get_id(payload))
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{
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clear_fragments(this, payload->get_id(payload));
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this->frag.list = linked_list_create();
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--
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1.8.1.2
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