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strongswan: add security patches

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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>
This commit is contained in:
Gustavo Zacarias 2013-11-01 10:54:27 -03:00 committed by Thomas Petazzoni
parent 9c7bc3f3c0
commit 90af4f16c5
3 changed files with 83 additions and 0 deletions
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29
package/strongswan/strongswan-0003-CVE-2013-5018-fix.patch Normal file
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@ -0,0 +1,29 @@
From 057265e0183ddf52d56f21adaf0db0f3dc6585a4 Mon Sep 17 00:00:00 2001
From: Tobias Brunner <tobias@strongswan.org>
Date: Mon, 29 Jul 2013 23:45:38 +0200
Subject: [PATCH] asn1: Fix handling of invalid ASN.1 length in is_asn1()
Fixes CVE-2013-5018.
---
src/libstrongswan/asn1/asn1.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/libstrongswan/asn1/asn1.c b/src/libstrongswan/asn1/asn1.c
index 68f37f4..d860ad9 100644
--- a/src/libstrongswan/asn1/asn1.c
+++ b/src/libstrongswan/asn1/asn1.c
@@ -642,6 +642,11 @@ bool is_asn1(chunk_t blob)
len = asn1_length(&blob);
+ if (len == ASN1_INVALID_LENGTH)
+ {
+ return FALSE;
+ }
+
/* exact match */
if (len == blob.len)
{
--
1.7.10.4

27
package/strongswan/strongswan-0004-CVE-2013-6075-fix.patch Normal file
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@ -0,0 +1,27 @@
From aa277adfc204b6bda2c3792710138f9a8723a8f1 Mon Sep 17 00:00:00 2001
From: Martin Willi <martin@revosec.ch>
Date: Mon, 7 Oct 2013 14:21:57 +0200
Subject: [PATCH] identification: Properly check length before comparing for
binary DN equality
Fixes CVE-2013-6075.
---
src/libstrongswan/utils/identification.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/libstrongswan/utils/identification.c b/src/libstrongswan/utils/identification.c
index 5df3e5f..9c43ad5 100644
--- a/src/libstrongswan/utils/identification.c
+++ b/src/libstrongswan/utils/identification.c
@@ -602,7 +602,7 @@ static bool compare_dn(chunk_t t_dn, chunk_t o_dn, int *wc)
}
}
/* try a binary compare */
- if (memeq(t_dn.ptr, o_dn.ptr, t_dn.len))
+ if (chunk_equals(t_dn, o_dn))
{
return TRUE;
}
--
1.8.1.2

27
package/strongswan/strongswan-0005-CVE-2013-6076-fix.patch Normal file
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@ -0,0 +1,27 @@
From d8867a8452eece3fffab29605f48e6bed47c42d4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Volker=20R=C3=BCmelin?= <vr_strongswan@t-online.de>
Date: Fri, 11 Oct 2013 09:38:24 +0200
Subject: [PATCH] ikev1: Properly initialize list of fragments in case fragment
ID is 0
Fixes CVE-2013-6076.
---
src/libcharon/sa/ikev1/task_manager_v1.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/libcharon/sa/ikev1/task_manager_v1.c b/src/libcharon/sa/ikev1/task_manager_v1.c
index 6d4ef14..597416e 100644
--- a/src/libcharon/sa/ikev1/task_manager_v1.c
+++ b/src/libcharon/sa/ikev1/task_manager_v1.c
@@ -1273,7 +1273,7 @@ static status_t handle_fragment(private_task_manager_t *this, message_t *msg)
return FAILED;
}
- if (this->frag.id != payload->get_id(payload))
+ if (!this->frag.list || this->frag.id != payload->get_id(payload))
{
clear_fragments(this, payload->get_id(payload));
this->frag.list = linked_list_create();
--
1.8.1.2