Operating System:



25 August 2006

Protect yourself against future threats.

Hash: SHA1

             AUSCERT External Security Bulletin Redistribution

                         ESB-2006.0606 -- [Debian]
                New sendmail packages fix denial of service
                              25 August 2006


        AusCERT Security Bulletin Summary

Product:              sendmail
Publisher:            Debian
Operating System:     Debian GNU/Linux 3.1
Impact:               Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2006-1173

Ref:                  AL-2006.0048

Revision History:  August 25 2006: Updated by Debian for libasal2 notes.
                   August 24 2006: Initial Release

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

Hash: SHA1

- - --------------------------------------------------------------------------
Debian Security Advisory DSA 1155-2                    security@debian.org
http://www.debian.org/security/                             Martin Schulze
August 24th, 2006                       http://www.debian.org/security/faq
- - --------------------------------------------------------------------------

Package        : sendmail
Vulnerability  : programming error
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2006-1173
CERT advisory  : VU#146718
BugTraq ID     : 18433
Debian Bug     : 373801 380258

It turned out that the sendmail binary depends on libsasl2 (>= 2.1.19.dfsg1)
which is neither available in the stable nor in the the security archive.
This version is scheduled for the inclusion in the next update of the
stable release, though.

You'll have to download the referenced file for your architecture from
below and install it with dpkg -i.

As an alternative, temporarily adding the following line to
/etc/apt/sources.list will mitigate the problem as well:

  deb http://ftp.debian.de/debian stable-proposed-updates main

Here is the original security advisory for completeness:

  Frank Sheiness discovered that a MIME conversion routine in sendmail,
  a powerful, efficient, and scalable mail transport agent, could be
  tricked by a specially crafted mail to perform an endless recursion.

For the stable distribution (sarge) this problem has been fixed in
version 8.13.4-3sarge2.

For the unstable distribution (sid) this problem has been fixed in
version 8.13.7-1.

We recommend that you upgrade your sendmail package.

Upgrade Instructions
- - --------------------

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given at the end of this advisory:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.

Debian GNU/Linux 3.1 alias sarge
- - --------------------------------

  Source archives:

      Size/MD5 checksum:    31919 f7042b666907ca4294018bc764edce96
      Size/MD5 checksum:     1131 aca52362519bd66cda473678eaf2130f
      Size/MD5 checksum:  1576960 f2fa0ce4d8b3dc37ca71fb5b5d57cd8b

  Alpha architecture:

      Size/MD5 checksum:   277878 30d488b82d54f006662f52609da94f0a

  HP Precision architecture:

      Size/MD5 checksum:   273306 46dec2833097a7006953004c712208f6

  ARM architecture:

      Size/MD5 checksum:   260076 17cbbf95b9ba82428fce3721d8904fab

  Intel IA-32 architecture:

      Size/MD5 checksum:   258784 2f307e6af80a02a3e559020a31f00c94

  Motorola 680x0 architecture:

      Size/MD5 checksum:   253302 27e9e53ad9f430d5d731236f0fb7c5ca

  Big endian MIPS architecture:

      Size/MD5 checksum:   260866 8109e94b29d2f6a5cb1bedd0ce729ae9

  Little endian MIPS architecture:

      Size/MD5 checksum:   261078 2e6cd2f4f8e8fa7cb6863e6378cf77e9

  PowerPC architecture:

      Size/MD5 checksum:   268388 d3f233ab1a90934e6578b5ccebd5543b

  Sun Sparc architecture:

      Size/MD5 checksum:   257648 06552692dcf73bd6db29ca5e12ea90bf

  IBM S/390 architecture:

      Size/MD5 checksum:   265332 586764113955d451c9ae16e404c7ea37

  Intel IA-64 architecture:

      Size/MD5 checksum:   297874 1b2e9357178ead1e33616513c8402080

  These files will probably be moved into the stable distribution on
  its next update.

- - ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>

Version: GnuPG v1.4.5 (GNU/Linux)


- --------------------------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:


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:


Australian Computer Emergency Response Team
The University of Queensland
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.

Comment: http://www.auscert.org.au/render.html?it=1967