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SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c00629555
Version: 9

HPSBUX02108 SSRT061133 rev.9 - HP-UX running Sendmail, Remote
Execution of Arbitrary Code

NOTICE: The information in this Security Bulletin should be acted
upon as soon as possible.

Release Date: 2006-04-25
Last Updated: 2006-04-26

Potential Security Impact: Remote Execution of Arbitrary Code

Source: Hewlett-Packard Company,
        HP Software Security Response Team

VULNERABILITY SUMMARY
A vulnerability has been identified in Sendmail which may allow a
remote attacker to execute arbitrary code.

References: CVE-2006-0058

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HP-UX B.11.00, B.11.11, B.11.23.

BACKGROUND

CERT has published a vulnerability report available at:
http://www.kb.cert.org/vuls/id/834865 

This bulletin will be revised as other versions of Sendmail become
available.

To determine if an HP-UX system has an affected version,
search the output of "swlist -a revision -l fileset"
for one of the filesets listed below. For affected systems
verify that the recommended action has been taken.

AFFECTED VERSIONS

For sendmail 8.13.3
HP-UX B.11.23
=========SMAIL-UPGRADE.INET-SMAIL
SMAIL-UPGRADE.INET2-SMAIL
 ->action: install revision B.11.23.01.002 or subsequent,
 ->modify /etc/mail/sendmail.cf
URL: ftp://sendmail:sendmail@hprc.external.hp.com/ 
sendmail-8.13_1123.depot

HP-UX B.11.11
=========SMAIL-UPGRADE.INETSVCS-SMAIL
action: install revision B.11.11.02.002 or subsequent,
 ->modify /etc/mail/sendmail.cf
URL: ftp://sendmail:sendmail@hprc.external.hp.com/ 
sendmail-8.13_1111.depot

For sendmail 8.11.1
HP-UX B.11.23
=========InternetSrvcs.INETSVCS2-RUN
action: install UNOF_INET31734_1.depot or subsequent,
 ->modify /etc/mail/sendmail.cf
URL: ftp://sendmail:sendmail@hprc.external.hp.com/ 
UNOF_INET31734_1.depot

HP-UX B.11.11
=========SMAIL-811.INETSVCS-SMAIL
action: remove SMAIL-811 and migrate to SMAIL-UPGRADE,
 ->modify /etc/mail/sendmail.cf
URL: ftp://sendmail:sendmail@hprc.external.hp.com/ 
sendmail-8.13_1111.depot

HP-UX B.11.00
=========SMAIL-811.INETSVCS-SMAIL
action: install revision B.11.00.01.006 or subsequent,
 ->modify /etc/mail/sendmail.cf
URL: ftp://sendmail:sendmail@hprc.external.hp.com/ 
sendmail-811_01.006.depot

For sendmail 8.9.3
HP-UX B.11.11
=========InternetSrvcs.INETSVCS-RUN
action: install UNOF_INET_29774_2.depot or subsequent,
 ->modify /etc/mail/sendmail.cf
URL: ftp://sendmail:sendmail@hprc.external.hp.com/ 
UNOF_INET_29774_2.depot

HP-UX B.11.00
=========InternetSrvcs.INETSVCS-RUN
action: install UNOF_INET29773_2.depot or subsequent,
 ->modify /etc/mail/sendmail.cf
URL: ftp://sendmail:sendmail@hprc.external.hp.com/ 
UNOF_INET_29773_2.depot

For sendmail 8.8.6
HP-UX B.11.00
=========InternetSrvcs.INETSVCS-RUN
action: install UNOF_INET29773_2.depot or subsequent,
 ->modify /etc/mail/sendmail.cf
URL: ftp://sendmail:sendmail@hprc.external.hp.com/ 
UNOF_INET_29773_2.depot


END AFFECTED VERSIONS



RESOLUTION

HP has made the following software updates available to resolve
the issue.

Installations running sendmail 8.11.1 on HPUX 11.11 should upgrade
to sendmail 8.13.3 from the upgrade software listed in this
bulletin.

The software updates can be downloaded via ftp from:

System: hprc.external.hp.com (192.170.19.100)
Login: sendmail
Password: sendmail (NOTE: CASE-sensitive)

ftp://sendmail:sendmail@hprc.external.hp.com 
or
ftp://sendmail:sendmail@192.170.19.100 

The cksum and md5 output for the preliminary depots are listed
below.  The cksum and md5 output are also found the README.txt.pgp
on the ftp site.

For sendmail 8.13.3, HP-UX B.11.23
sendmail-8.13_1123.depot
cksum 692720776 15759360
md5 E09933A4AECC16B97A8F7ACF07060F84

For sendmail 8.13.3, HP-UX B.11.11
sendmail-8.13_1111.depot
cksum 954959898 5130240
md5 C85EFD8AEDB16EEF1DF0FF65988350C0

For sendmail 8.11.1, HP-UX B.11.23
UNOF_INET31734_1.depot
cksum 3327957574 3317760
md5 B17A7F5566214B35E983B3F53C309A17

UNOF_INET31734_1.text
cksum 2096860596 7487
md5 565F7963B77BEE3EB2825990F60D1F6D

For sendmail 8.11.1, HP-UX B.11.11
 ->sendmail-8.13_1111.depot
 ->cksum 954959898 5130240
 ->md5 c85efd8aedb16eef1df0ff65988350c0
 ->Note: The depot above upgrades sendmail 8.11.1 to
 ->sendmail 8.13.3.

For sendmail 8.11.1, HP-UX B.11.00
sendmail-811_01.006.depot
cksum 4072259977 2846720
md5 847aa9f1a154da9b07afc26d91fbaba6

sendmail-811_01.006.text
cksum 2379624538 36262
md5 cac0d95747af260f40dac7cc943f6353


For sendmail 8.9.3, HP-UX B.11.11
 ->UNOF_INET_29774_2.depot
 ->cksum 1137088734 890880
 ->md5 18c81ca8a63aeb372fa15062b477e687

For sendmail 8.9.3, HP-UX B.11.00
UNOF_INET29773_2.depot
cksum 3391088280 1372160
md5 efce851a2a666ca51c0539103f92e49f

UNOF_INET29773_1.text
cksum 2797348841 1372160
md5 67acbcff161b71930365b3b77788fbde

 ->For sendmail 8.8.6, HP-UX B.11.00
 ->UNOF_INET29773_2.depot
 ->cksum 3391088280 1372160
 ->md5 efce851a2a666ca51c0539103f92e49f
 ->Note: The depot above upgrades sendmail 8.8.6 to
 ->sendmail 8.9.3.

 ->UNOF_INET29773_1.text
 ->cksum 2797348841 1372160
 ->md5 67acbcff161b71930365b3b77788fbde

For all versions of sendmail:
modify sendmail.cf to add 'restrictqrun' to the PrivacyOptions.


After installation, verify output of what /usr/sbin/sendmail.
To check if installations are running sendmail 8.8.6 execute
"what /usr/sbin/sendmail"
and check the version string.

Sendmail-811 for HP-UX B.11.11
The recommended solution is to upgrade to sendmail 8.13.3 by
installing the depot listed above.  If a server must remain on
sendmail 8.11.1 a solution is available by contacting your support
representative


MANUAL ACTIONS: Yes - NonUpdate

HP-UX B.11.00 - install preliminary software updates
from ftp server, modify /etc/mail/sendmail.cf to add
'restrictqrun' to the PrivacyOptions

HP-UX B.11.11 - install preliminary software updates
from ftp server, modify /etc/mail/sendmail.cf to add
'restrictqrun' to the PrivacyOptions

HP-UX B.11.23 - install preliminary software updates
from ftp server, modify /etc/mail/sendmail.cf to add
'restrictqrun' to the PrivacyOptions


PRODUCT SPECIFIC INFORMATION

HP-UX Security Patch Check: Security Patch Check revision B.02.00
analyzes all HP-issued Security Bulletins to provide a subset of
recommended actions that potentially affect a specific HP-UX
system. For more information:
http://software.hp.com/portal/swdepot/displayProductInfo.do? 
productNumber=B6834AA

HISTORY:
Version: 1 (rev.1) - 25 March 2006 Initial release
Version: 2 (rev.2) - 30 March 2006 updated md5 / cksum output
Version: 3 (rev.3) - 04 April 2006 updated B.11.23 depot,
added 8.11.1 for B.11.23 depot
Version: 4 (rev.4) - 07 April 2006 added 8.9.3 depot for B.11.11
Version: 5 (rev.5) - 10 April 2006 clarified affected versions
Version: 6 (rev.6) - 12 April 2006 added 8.9.3 and 8.11.1 depots
for B.11.00
Version: 7 (rev.7) - 18 April 2006 added 8.11.1 upgrade for
HP-UX B.11.11
Version: 8 (rev.8) - 24 April 2006 replaced 8.9.3 depot for
HP-UX B.11.00 and B.11.11
Version: 9 (rev.9) - 25 April 2006 added manual actions


Support: For further information, contact normal HP Services
support channel.

Report: To report a potential security vulnerability with any HP
supported product, send Email to: security-alert@hp.com. It is 
strongly recommended that security related information being
communicated to HP be encrypted using PGP, especially exploit
information.  To get the security-alert PGP key, please send an
e-mail message as follows:
To: security-alert@hp.com 
  Subject: get key

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On the web page: ITRC security bulletins and patch sign-up
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To review previously published Security Bulletins visit:
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* The Software Product Category that this Security Bulletin
relates to is represented by the 5th and 6th characters of the
Bulletin number in the title:

    GN = HP General SW,
    MA = HP Management Agents,
    MI = Misc. 3rd party SW,
    MP = HP MPE/iX,
    NS = HP NonStop Servers,
    OV = HP OpenVMS,
    PI = HP Printing & Imaging,
    ST = HP Storage SW,
    TL = HP Trusted Linux,
    TU = HP Tru64 UNIX,
    UX = HP-UX,
    VV = HP Virtual Vault


System management and security procedures must be reviewed
frequently to maintain system integrity. HP is continually
reviewing and enhancing the security features of software products
to provide customers with current secure solutions.

"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. To the
extent permitted by law, HP disclaims all warranties, either
express or implied, including the warranties of merchantability
and fitness for a particular purpose, title and non-infringement."


(c)Copyright 2006 Hewlett-Packard Development Company, L.P.
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
provided is provided "as is" without warranty of any kind. To the
extent permitted by law, neither HP nor its affiliates,
subcontractors or suppliers will be liable for incidental, special
or consequential damages including downtime cost; lost profits;
damages relating to the procurement of substitute products or
services; or damages for loss of data, or software restoration.
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.

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