Operating System:

Published:

06 November 2003

Protect yourself against future threats.

-----BEGIN PGP SIGNED MESSAGE-----

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

         ESB-2003.0770 -- HEWLETT-PACKARD COMPANY SECURITY BULLETIN
 SSRT3631 - Tru64 UNIX sendmail Potential Security Vulnerability REVISION 2
                             07 November 2003

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

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

Product:                sendmail
Publisher:              Hewlett-Packard
Operating System:       HP Tru64 UNIX
Impact:                 Root Compromise
Access Required:        Remote

Ref:                    AL-2003.17
                        ESB-2003.0759

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

SECURITY BULLETIN

REVISION: 2

SSRT3631 - Tru64 UNIX sendmail Potential Security Vulnerability

- ---------------------------------------------------------------
NOTICE: There are no restrictions for distribution of this
Bulletin provided that it remains complete and intact.

RELEASE DATE: 6 November 2003

SEVERITY:  1

SOURCE:  HEWLETT-PACKARD COMPANY
Software Security Response Team

REFERENCE:  CA-2003-25, SSRT3612, SSRT3531

PROBLEM SUMMARY
A potential security vulnerability has been identified in
sendmail where a buffer overflow could result in a local or
remote user gaining unauthorized privileged access.

VERSIONS IMPACTED


All currently supported versions of HP Tru64 UNIX running
sendmail including

HP Tru64 UNIX 5.1B  All Base levels

HP Tru64 UNIX 5.1A  All Base levels

HP Tru64 UNIX 5.1    All Base levels

HP Tru64 UNIX 4.0G  All Base levels

HP Tru64 UNIX 4.0F  All Base levels

and

HP Tru64 UNIX (IX) Internet Express running sendmail versions
8.9.3 through 8.12.9 which were delivered with IX kit versions
5.43 through 6.12.

To determine if this patch kit is needed

If the installed the version of sendmail was shipped with
affected versions of HP Tru64 UNIX or HP Tru64 UNIX (IX)
Internet Express versions 5.4 through 6.1 a patch will be
required.
Sendmail versions 8.9.3 through 8.12.9 are affected.

To determine the version of sendmail run the following command:

# /usr/sbin/sendmail -d0.1


Version 8.9.3
 Compiled with: some verbiage

RESOLUTION

Until the resolutions are available in HP Tru64 UNIX
mainstream release patch kits, HP is releasing the following
Early Release Patch (ERP) kits.

The fixes contained in the ERP kits are scheduled to be
available in the following mainstream patch kits:

     HP Tru64 UNIX V5.1B PK4

     HP Tru64 UNIX V5.1A PK6

NOTE: New 2048 byte maximum line enforcement for Tru64 UNIX
versions 5.1B, 5.1A and 5.1

The patched versions of sendmail for Tru64 UNIX versions 5.1B,
5.1A, and 5.1 include updated code from sendmail.org that
enforces a maximum line length of 2048 bytes within a message.

If there is an application or other need to issue lines that
exceed 2048 bytes, override the line length enforcement by
entering the following line in the sendmail.cf file:

MaxMimeHeaderLength=-1/-1

Early Release Patches

The ERP kits use dupatch to install and will not install over
any installed Customer Specific Patches (CSPs) that have file
intersections with the ERPs.  Contact the appropriate HP
Services support channel for assistance if the installation of
the ERPs is blocked by any installed CSPs.

For alternatives to using the Dupach ERP kit solutions for the
HP Tru64 UNIX Base OS please see the following Web page:
http://h30097.www3.hp.com/unix/AlternativesToUsingDupatch.htm.

The following ERP kits are available for HP Tru64 UNIX:

NOTE: These currently released ERPs do have file interactions
with the ERPs provided to resolve SSRT3531 i.e. 5.1A PK4 (BL21),
5.1 PK6 (BL20), 4.0G PK3 (BL17), 4.0F PK7 (BL18) however, they
are designed to install standalone or seamlessly over the
previous SSRT3531 patch kits.

HP Tru64 UNIX 5.1B
PREREQUISITE:      HP Tru64 UNIX with 5.1B with PK3 (BL24)
installed
ERP Kit Name: T64KIT0020437-V51BB24-ES-20031001.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64KIT0020437-V51BB24-ES-20031001

HP Tru64 UNIX 5.1B
PREREQUISITE:      HP Tru64 UNIX with 5.1B with PK2 (BL22)
installed
ERP Kit Name: T64KIT0020135-V51BB22-ES-20031001.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64KIT0020135-V51BB22-ES-20031001

HP Tru64 UNIX 5.1B
PREREQUISITE:      HP Tru64 UNIX with 5.1B with patch kit prior
to PK2 (BL22) installed
Please upgrade to 5.1B PK2 (BL22) and apply the above patch kit.

HP Tru64 UNIX 5.1A
PREREQUISITE:      HP Tru64 UNIX with 5.1A with PK5 (BL23)
installed
ERP Kit Name: T64KIT0020137-V51AB23-ES-20031001.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64KIT0020137-V51AB23-ES-20031001

HP Tru64 UNIX 5.1A
PREREQUISITE:      HP Tru64 UNIX with 5.1A with PK4 (BL21)
installed
ERP Kit Name: T64KIT0020138-V51AB21-ES-20031001.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64KIT0020138-V51AB21-ES-20031001

HP Tru64 UNIX 5.1
PREREQUISITE:      HP Tru64 UNIX with 5.1A with PK6 (BL20)
installed
ERP Kit Name: T64KIT0020139-V51B20-ES-20031001.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64KIT0020139-V51B20-ES-20031001

HP Tru64 UNIX 4.0F
PREREQUISITE:      HP Tru64 UNIX with 4.0F with PK4 (BL22)
installed
ERP Kit Name: DUXKIT0020136-V40FB22-ES-20031001.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
DUXKIT0020136-V40FB22-ES-20031001

HP Tru64 UNIX 4.0F
PREREQUISITE:      HP Tru64 UNIX with 4.0F with PK7 (BL18)
installed
ERP Kit Name: DUXKIT0020134-V40FB18-ES-20031001.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
DUXKIT0020134-V40FB18-ES-20031001

HP Tru64 UNIX 4.0G
PREREQUISITE:      HP Tru64 UNIX with 4.0G with PK4 (BL22)
installed
ERP Kit Name:  T64KIT0020132-V40GB22-ES-20031001.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64KIT0020132-V40GB22-ES-20031001

HP Tru64 UNIX 4.0G
PREREQUISITE:      HP Tru64 UNIX with 4.0G with PK3 (BL17)
installed
ERP Kit Name: T64KIT0020133-V40GB17-ES-20031001.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64KIT0020133-V40GB17-ES-20031001

The following ERP kits are available for HP Tru64 UNIX (IX)
Internet Express:

NOTE: These ERPs include updates to the solution provided
for SSRT3612.

HP Tru64 UNIX Internet Express (IX) Sendmail v6.12
ERP Kit Name:  T64V51AB-IX-612-SENDMAIL-SSRT3631.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64V51AB-IX-612-SENDMAIL-SSRT3631

HP Tru64 UNIX Internet Express (IX) Sendmail v6.03
ERP Kit Name:  T64V51AB-IX-603-SENDMAIL-SSRT3631.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64V51AB-IX-603-SENDMAIL-SSRT3631

HP Tru64 UNIX Internet Express (IX) Sendmail v5.94
ERP Kit Name:  T64V51AB-IX-594-SENDMAIL-SSRT3631.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64V51AB-IX-594-SENDMAIL-SSRT3631

HP Tru64 UNIX Internet Express (IX) Sendmail v5.86
ERP Kit Name:  T64V51AB-IX-586-SENDMAIL-SSRT3631.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64V51AB-IX-586-SENDMAIL-SSRT3631

HP Tru64 UNIX Internet Express (IX) Sendmail v5.74
ERP Kit Name:  T64V51AB-IX-574-SENDMAIL-SSRT3631.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64V51AB-IX-574-SENDMAIL-SSRT3631

HP Tru64 UNIX Internet Express (IX) Sendmail v5.63
ERP Kit Name:  T64V51AB-IX-563-SENDMAIL-SSRT3631.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64V51AB-IX-563-SENDMAIL-SSRT3631

HP Tru64 UNIX Internet Express (IX) Sendmail v5.53
ERP Kit Name:  T64V51AB-IX-553-SENDMAIL-SSRT3631.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64V51AB-IX-553-SENDMAIL-SSRT3631

HP Tru64 UNIX Internet Express (IX) Sendmail v5.43
ERP Kit Name:  T64V51AB-IX-543-SENDMAIL-SSRT3631.tar
General ITRC Patch Page:
http://www.itrc.hp.com/service/patch/mainPage.do
Kit Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=
T64V51AB-IX-543-SENDMAIL-SSRT3631

To determine if sendmail has been successfully patched
following installation of the ERP

To determine if a patch is installed run the following command:

# /usr/sbin/sendmail -d0.1
  Version 8.9.3 Compiled with: some verbiage Includes patches
for:  SSRT3469 SSRT3531  SSRT3631   <-- confirmation of patch
install


MD5 and SHA1 checksums are available in the public patch notice
for the ERP kits. You can find information on how to verify MD5
and SHA1 checksums at:
http://www.support.compaq.com/patches/whats-new.shtml


SUPPORT: For further information, contact HP Services.

SUBSCRIBE: To subscribe to automatically receive future Security
Advisories from the Software Security Response Team via electronic
mail:
http://www.support.compaq.com/patches/mail-list.shtml

REPORT: To report a potential security vulnerability with any HP
supported product, send email to: security-alert@hp.com

As always, HP urges you to periodically review your system
management and security procedures. HP will continue to review
and enhance the security features of its products and work with
our customers to maintain and improve the security and integrity
of their systems.

"HP is broadly distributing this Security Bulletin in order to
bring to the attention of users of the affected HP products the
important security information contained in this Bulletin. HP
recommends that all users determine the applicability of this
information to their individual situations and take appropriate
action. HP does not warrant that this information is necessarily
accurate or complete for all user situations and, consequently,
HP will not be responsible for any damages resulting from user's
use or disregard of the information provided in this Bulletin."


(c)Copyright 2001, 2003 Hewlett-Packard Development Company, L.P.
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
in this document is subject to change without notice.
Hewlett-Packard Company and the names of Hewlett-Packard products
referenced herein are trademarks of Hewlett-Packard Company in the
United States and other countries. Other product and company names
mentioned herein may be trademarks of their respective owners.

- --------------------------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.

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

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-----
Version: GnuPG v1.2.1 (FreeBSD)
Comment: http://www.auscert.org.au/render.html?it=1967

iQCVAwUBP6sgjSh9+71yA2DNAQEKWgP/Ztj9BTnpOq07btbjjEbP3xi0L8xvwzip
qQNtCLFnVdjbkPUwc9KQMoqvhphYuA/mpTma+zgCGlnSZjbQECMTkYPY2+W+73++
lnJ24ZZKwDtCeJXEx7s9k046mgWx/g7Ors8D5M0oCo33KrRMIjXAnqhAdHQ1Ma3Z
gv+kyaNf4wA=
=p5Bg
-----END PGP SIGNATURE-----