-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

===========================================================================
A  U  S  C  E  R  T                                           A  L  E  R  T

                       AL-2008.0064 -- AUSCERT ALERT
                               [UNIX/Linux]
           Boundary failure when parsing SMB responses in Samba
                                29 May 2008

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

        AusCERT Alert Summary
        ---------------------

Product:              Samba 3.0.0 - 3.0.29
Publisher:            Samba
Operating System:     UNIX variants (UNIX, Linux, OSX)
Impact:               Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated
CVE Names:            CVE-2008-1105

Original Bulletin:    http://samba.org/samba/security/CVE-2008-1105.html

- --------------------------BEGIN INCLUDED TEXT--------------------

- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

==========================================================
==
== Subject:     Boundary failure when parsing SMB responses
==              can result in a buffer overrun
==
== CVE ID#:     CVE-2008-1105
==
== Versions:    Samba 3.0.0 - 3.0.29 (inclusive)
==
== Summary:     Specifically crafted SMB responses can result
==              in a heap overflow in the Samba client code.
==              Because the server process, smbd, can itself
==              act as a client during operations such as
==              printer notification and domain authentication,
==              this issue affects both Samba client and server
==              installations.
==
==========================================================

===========
Description
===========

Secunia Research reported a vulnerability that allows for
the execution of arbitrary code in smbd.  This defect is
is a result of an incorrect buffer size when parsing SMB
replies in the routine receive_smb_raw().


==================
Patch Availability
==================

A patch addressing this defect has been posted to

  http://www.samba.org/samba/security/

Additionally, Samba 3.0.30 has been issued as a security
release to correct the defect.  Samba administrators are
advised to upgrade to 3.0.30 or apply the patch as soon
as possible.


=======
Credits
=======

This vulnerability was reported to Samba developers by
Alin Rad Pop, Secunia Research.

The time line is as follows:

* May 15, 2008: Initial report to security@samba.org.
* May 15, 2008: First response from Samba developers confirming
  the bug along with a proposed patch.
* May 28, 2008: Public security advisory made available.


==========================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
==========================================================
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFIPXTkIR7qMdg1EfYRAhaqAJ0cA6XoFP7debyYutME9fYTenfNVgCguM0I
nppfSSUdqtpbxbESEXjrnhU=
=1yBZ
- -----END PGP SIGNATURE-----

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
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
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

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

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
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.
===========================================================================

-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967

iQCVAwUBSD3eICh9+71yA2DNAQK/EAP/cKSGalm7F1H1iTTY72PvkDL/C1PhI+72
g+uC5gSgD+BVm9czJmtiUtBmJ6J+Lrw5BgW+TLKO9YcDsb/iM6IxO2TsCiuTwO1t
PP0BVCaCj8C4HeMM80qWPytoz1Y0pHQoVDoqZjdhRPfQKt7GFqAGobAaxg0A+YdV
UIln7h9i+g8=
=b0vq
-----END PGP SIGNATURE-----