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ESB-2014.0660 - [UNIX/Linux][Debian] strongswan: Denial of service - Remote/unauthenticated

Date: 06 May 2014

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.0660
                        strongswan security update
                                6 May 2014

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           strongswan
Publisher:         Debian
Operating System:  Debian GNU/Linux 6
                   Debian GNU/Linux 7
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-2891  

Original Bulletin: 
   http://www.debian.org/security/2014/dsa-2922

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running strongswan check for an updated version of the software for
         their operating system.

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- - -------------------------------------------------------------------------
Debian Security Advisory DSA-2922-1                   security@debian.org
http://www.debian.org/security/                         Yves-Alexis Perez
May 05, 2014                           http://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : strongswan
CVE ID         : CVE-2014-2891

A vulnerability has been found in the ASN.1 parser of strongSwan, an
IKE/IPsec suite used to establish IPsec protected links.

By sending a crafted ID_DER_ASN1_DN ID payload to a vulnerable pluto or
charon daemon, a malicious remote user can provoke a null pointer
dereference in the daemon parsing the identity, leading to a crash and a
denial of service.

For the oldstable distribution (squeeze), this problem has been fixed in
version 4.4.1-5.6.

For the stable distribution (wheezy), this problem has been fixed in
version 4.5.2-1.5+deb7u4.

For the testing distribution (jessie), this problem has been fixed in
version 5.1.2-1.

For the unstable distribution (sid), this problem has been fixed in
version 5.1.2-1.

We recommend that you upgrade your strongswan packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
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NOTE: This is only the original release of the security bulletin.  It may
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information, please contact them directly.

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        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
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