(Red Hat Issues Fix) strongSwan X.509 RDN and Time String Processing Bugs Let Remote Users Deny Service
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SecurityTracker Alert ID: 1022499 |
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SecurityTracker URL: http://securitytracker.com/id/1022499
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CVE Reference:
CVE-2009-2185
(Links to External Site)
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Date: Jul 2 2009
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Impact:
Denial of service via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 2.2.0 - 2.8.9, 4.3.0 - 4.3.1, 4.0.0 - 4.2.15
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Description:
Two vulnerabilities were reported in strongSwan. A remote user can cause denial of service conditions.
A remote user can send specially crafted X.509 certificate Relative Distinguished Name (RDN) data to cause the target pluto IKE daemon to crash and restart.
A remote user can send specially crafted X.509 certificate ASN.1 UTCTIME and GENERALIZEDTIME time strings to cause the target pluto IKE daemon to crash and restart.
Orange Labs vulnerability research team reported these vulnerabilities.
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Impact:
A remote user can cause the target pluto IKE daemon to crash and restart.
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Solution:
Red Hat has released a fix.
The Red Hat advisory is available at:
https://rhn.redhat.com/errata/RHSA-2009-1138.html
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Vendor URL: www.strongswan.org/ (Links to External Site)
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Cause:
Input validation error
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Underlying OS:
Linux (Red Hat Enterprise)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Thu, 2 Jul 2009 11:25:45 -0400
Subject: [RHSA-2009:1138-01] Important: openswan security update
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Important: openswan security update
Advisory ID: RHSA-2009:1138-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-1138.html
Issue date: 2009-07-02
CVE Names: CVE-2009-2185
=====================================================================
1. Summary:
Updated openswan packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 5.
This update has been rated as having important security impact by the Red
Hat Security Response Team.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
3. Description:
Openswan is a free implementation of Internet Protocol Security (IPsec)
and Internet Key Exchange (IKE). IPsec uses strong cryptography to provide
both authentication and encryption services. These services allow you to
build secure tunnels through untrusted networks. Everything passing through
the untrusted network is encrypted by the IPsec gateway machine, and
decrypted by the gateway at the other end of the tunnel. The resulting
tunnel is a virtual private network (VPN).
Multiple insufficient input validation flaws were found in the way
Openswan's pluto IKE daemon processed some fields of X.509 certificates. A
remote attacker could provide a specially-crafted X.509 certificate that
would crash the pluto daemon. (CVE-2009-2185)
All users of openswan are advised to upgrade to these updated packages,
which contain a backported patch to correct these issues. After installing
this update, the ipsec service will be restarted automatically.
4. Solution:
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259
5. Bugs fixed (http://bugzilla.redhat.com/):
507362 - CVE-2009-2185 Openswan ASN.1 parser vulnerability
6. Package List:
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/openswan-2.6.14-1.el5_3.3.src.rpm
i386:
openswan-2.6.14-1.el5_3.3.i386.rpm
openswan-debuginfo-2.6.14-1.el5_3.3.i386.rpm
openswan-doc-2.6.14-1.el5_3.3.i386.rpm
x86_64:
openswan-2.6.14-1.el5_3.3.x86_64.rpm
openswan-debuginfo-2.6.14-1.el5_3.3.x86_64.rpm
openswan-doc-2.6.14-1.el5_3.3.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/openswan-2.6.14-1.el5_3.3.src.rpm
i386:
openswan-2.6.14-1.el5_3.3.i386.rpm
openswan-debuginfo-2.6.14-1.el5_3.3.i386.rpm
openswan-doc-2.6.14-1.el5_3.3.i386.rpm
ia64:
openswan-2.6.14-1.el5_3.3.ia64.rpm
openswan-debuginfo-2.6.14-1.el5_3.3.ia64.rpm
openswan-doc-2.6.14-1.el5_3.3.ia64.rpm
ppc:
openswan-2.6.14-1.el5_3.3.ppc.rpm
openswan-debuginfo-2.6.14-1.el5_3.3.ppc.rpm
openswan-doc-2.6.14-1.el5_3.3.ppc.rpm
s390x:
openswan-2.6.14-1.el5_3.3.s390x.rpm
openswan-debuginfo-2.6.14-1.el5_3.3.s390x.rpm
openswan-doc-2.6.14-1.el5_3.3.s390x.rpm
x86_64:
openswan-2.6.14-1.el5_3.3.x86_64.rpm
openswan-debuginfo-2.6.14-1.el5_3.3.x86_64.rpm
openswan-doc-2.6.14-1.el5_3.3.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2185
http://www.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2009 Red Hat, Inc.
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