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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: openswan security update
Advisory ID:       RHSA-2013:0827-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2013-0827.html
Issue date:        2013-05-15
CVE Names:         CVE-2013-2053 
=====================================================================

1. Summary:

Updated openswan packages that fix one security issue are now available for
Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from the
CVE link in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, 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. When using Opportunistic
Encryption, Openswan's pluto IKE daemon requests DNS TXT records to obtain
public RSA keys of itself and its peers.

A buffer overflow flaw was found in Openswan. If Opportunistic Encryption
were enabled ("oe=yes" in "/etc/ipsec.conf") and an RSA key configured, an
attacker able to cause a system to perform a DNS lookup for an
attacker-controlled domain containing malicious records (such as by sending
an email that triggers a DKIM or SPF DNS record lookup) could cause
Openswan's pluto IKE daemon to crash or, potentially, execute arbitrary
code with root privileges. With "oe=yes" but no RSA key configured, the
issue can only be triggered by attackers on the local network who can
control the reverse DNS entry of the target system. Opportunistic
Encryption is disabled by default. (CVE-2013-2053)

This issue was discovered by Florian Weimer of the Red Hat Product Security
Team.

All users of openswan are advised to upgrade to these updated packages,
which contain backported patches to correct this issue. After installing
this update, the ipsec service will be restarted automatically.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

5. Bugs fixed (http://bugzilla.redhat.com/):

960229 - CVE-2013-2053 Openswan: remote buffer overflow in atodn()

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-2.6.32-5.el5_9.src.rpm

i386:
openswan-2.6.32-5.el5_9.i386.rpm
openswan-debuginfo-2.6.32-5.el5_9.i386.rpm
openswan-doc-2.6.32-5.el5_9.i386.rpm

x86_64:
openswan-2.6.32-5.el5_9.x86_64.rpm
openswan-debuginfo-2.6.32-5.el5_9.x86_64.rpm
openswan-doc-2.6.32-5.el5_9.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/openswan-2.6.32-5.el5_9.src.rpm

i386:
openswan-2.6.32-5.el5_9.i386.rpm
openswan-debuginfo-2.6.32-5.el5_9.i386.rpm
openswan-doc-2.6.32-5.el5_9.i386.rpm

ia64:
openswan-2.6.32-5.el5_9.ia64.rpm
openswan-debuginfo-2.6.32-5.el5_9.ia64.rpm
openswan-doc-2.6.32-5.el5_9.ia64.rpm

ppc:
openswan-2.6.32-5.el5_9.ppc.rpm
openswan-debuginfo-2.6.32-5.el5_9.ppc.rpm
openswan-doc-2.6.32-5.el5_9.ppc.rpm

s390x:
openswan-2.6.32-5.el5_9.s390x.rpm
openswan-debuginfo-2.6.32-5.el5_9.s390x.rpm
openswan-doc-2.6.32-5.el5_9.s390x.rpm

x86_64:
openswan-2.6.32-5.el5_9.x86_64.rpm
openswan-debuginfo-2.6.32-5.el5_9.x86_64.rpm
openswan-doc-2.6.32-5.el5_9.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/openswan-2.6.32-20.el6_4.src.rpm

i386:
openswan-2.6.32-20.el6_4.i686.rpm
openswan-debuginfo-2.6.32-20.el6_4.i686.rpm

x86_64:
openswan-2.6.32-20.el6_4.x86_64.rpm
openswan-debuginfo-2.6.32-20.el6_4.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/openswan-2.6.32-20.el6_4.src.rpm

i386:
openswan-debuginfo-2.6.32-20.el6_4.i686.rpm
openswan-doc-2.6.32-20.el6_4.i686.rpm

x86_64:
openswan-debuginfo-2.6.32-20.el6_4.x86_64.rpm
openswan-doc-2.6.32-20.el6_4.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/openswan-2.6.32-20.el6_4.src.rpm

i386:
openswan-2.6.32-20.el6_4.i686.rpm
openswan-debuginfo-2.6.32-20.el6_4.i686.rpm

ppc64:
openswan-2.6.32-20.el6_4.ppc64.rpm
openswan-debuginfo-2.6.32-20.el6_4.ppc64.rpm

s390x:
openswan-2.6.32-20.el6_4.s390x.rpm
openswan-debuginfo-2.6.32-20.el6_4.s390x.rpm

x86_64:
openswan-2.6.32-20.el6_4.x86_64.rpm
openswan-debuginfo-2.6.32-20.el6_4.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/openswan-2.6.32-20.el6_4.src.rpm

i386:
openswan-debuginfo-2.6.32-20.el6_4.i686.rpm
openswan-doc-2.6.32-20.el6_4.i686.rpm

ppc64:
openswan-debuginfo-2.6.32-20.el6_4.ppc64.rpm
openswan-doc-2.6.32-20.el6_4.ppc64.rpm

s390x:
openswan-debuginfo-2.6.32-20.el6_4.s390x.rpm
openswan-doc-2.6.32-20.el6_4.s390x.rpm

x86_64:
openswan-debuginfo-2.6.32-20.el6_4.x86_64.rpm
openswan-doc-2.6.32-20.el6_4.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/openswan-2.6.32-20.el6_4.src.rpm

i386:
openswan-2.6.32-20.el6_4.i686.rpm
openswan-debuginfo-2.6.32-20.el6_4.i686.rpm

x86_64:
openswan-2.6.32-20.el6_4.x86_64.rpm
openswan-debuginfo-2.6.32-20.el6_4.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/openswan-2.6.32-20.el6_4.src.rpm

i386:
openswan-debuginfo-2.6.32-20.el6_4.i686.rpm
openswan-doc-2.6.32-20.el6_4.i686.rpm

x86_64:
openswan-debuginfo-2.6.32-20.el6_4.x86_64.rpm
openswan-doc-2.6.32-20.el6_4.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://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2013-2053.html
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2013 Red Hat, Inc.
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