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Date: Mon, 29 Sep 2003 13:28:06 -0700
From: SGI Security Coordinator <agent99@....com>
To: agent99@....com
Cc: bugtraq@...urityfocus.com, full-disclosure@...ts.netsys.com,
	vulnwatch@...nwatch.org
Subject: sendmail prescan() vulnerability on IRIX


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

______________________________________________________________________________

                           SGI Security Advisory

 Title:      sendmail prescan() vulnerability
 Number:     20030903-01-P
 Date:       September 29, 2003
 Reference:  CERT CA-2003-25
 Reference:  CAN-2003-0694
 Reference:  SGI BUG 900772
 Fixed in:   IRIX 6.5.22 or patches 5325 and 5326
______________________________________________________________________________

 SGI provides this information freely to the SGI user community for its
 consideration, interpretation, implementation and use.   SGI recommends
 that this information be acted upon as soon as possible.

 SGI provides the information in this Security Advisory on an "AS-IS"
 basis only, and disclaims all warranties with respect thereto, express,
 implied or otherwise, including, without limitation, any warranty of
 merchantability or fitness for a particular purpose.  In no event shall
 SGI be liable for any loss of profits, loss of business, loss of data or

 for any indirect, special, exemplary, incidental or consequential
 damages
 of any kind arising from your use of, failure to use or improper use of
 any of the instructions or information in this Security Advisory.
_____________________________________________________________________________

- -----------------------
- --- Issue Specifics ---
- -----------------------

 It has been reported that under certain conditions a vulnerability in
 sendmail could allow a remote attacker to execute arbitrary code with
 the privileges of the sendmail daemon, typically root. This effects
 all versions of sendmail including the latest version, 8.12.9.

 For more details please see:
 http://www.cert.org/advisories/CA-2003-25.html
 http://www.kb.cert.org/vuls/id/784980
 http://lists.netsys.com/pipermail/full-disclosure/2003-September/010287.html

 The Common Vulnerabilities and Exposures project (cve.mitre.org) has
 assigned the name CAN-2003-0694 to this issue:
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0694

 SGI has investigated the issue and recommends the following steps for
 neutralizing the exposure.  It is HIGHLY RECOMMENDED that these measures

 be implemented on ALL vulnerable SGI systems.  This issue has been
 corrected in future releases of IRIX.


- --------------
- --- Impact ---
- --------------

 sendmail is install by default on IRIX.

 To determine the version of IRIX you are running, execute the following
 command:

   # /bin/uname -R

 That will return a result similar to the following:

   # 6.5 6.5.21f

 The first number ("6.5") is the release name, the second ("6.5.21f" in
 this case) is the extended release name.  The extended release name
 is the "version" we refer to throughout this document.

 If the output shows a release below 6.5.22, then the system may be
 vulnerable unless patched.


- ----------------------------
- --- Temporary Workaround ---
- ----------------------------

 There is no effective workaround available for this vulnerability.

 SGI understands that there are times when upgrading the operating system or
 installing patches are inconvenient or not possible.  In those instances,
 we recommend to run the following as root:

   # chkconfig sendmail off

   # /etc/init.d/sendmail stop

 Of course, you will no longer have the services of the sendmail server
 after doing this.

 SGI recommends either upgrading to IRIX 6.5.22 (when available),
 or installing the appropriate patch from the listing below.


- ----------------
- --- Solution ---
- ----------------

 SGI has provided a series of patches for these vulnerabilities. Our
 recommendation is to upgrade to IRIX 6.5.22, or install the appropriate
 patch.

 OS Version     Vulnerable?     Patch #      Other Actions
 ----------     -----------     -------      -------------
 IRIX 3.x        unknown                     Note 1
 IRIX 4.x        unknown                     Note 1
 IRIX 5.x        unknown                     Note 1
 IRIX 6.0.x      unknown                     Note 1
 IRIX 6.1        unknown                     Note 1
 IRIX 6.2        unknown                     Note 1
 IRIX 6.3        unknown                     Note 1
 IRIX 6.4        unknown                     Note 1
 IRIX 6.5          no                       Notes 2
 IRIX 6.5.1        no                       Notes 2
 IRIX 6.5.2        no                       Notes 2
 IRIX 6.5.3        no                       Notes 2
 IRIX 6.5.4        no                       Notes 2
 IRIX 6.5.5        no                       Notes 2
 IRIX 6.5.6        no                       Notes 2
 IRIX 6.5.7        no                       Notes 2
 IRIX 6.5.8        no                       Notes 2
 IRIX 6.5.9        no                       Notes 2
 IRIX 6.5.10       no                       Notes 2
 IRIX 6.5.11       no                       Notes 2
 IRIX 6.5.12       no                       Notes 2
 IRIX 6.5.13       no                       Notes 2
 IRIX 6.5.14       no                       Notes 2
 IRIX 6.5.15       yes         5326         Notes 2 & 3
 IRIX 6.5.16       yes         5326         Notes 2 & 3
 IRIX 6.5.17m      yes         5326         Notes 2 & 3
 IRIX 6.5.17f      yes         5326         Notes 2 & 3
 IRIX 6.5.18m      yes         5326         Notes 2 & 3
 IRIX 6.5.18f      yes         5326         Notes 2 & 3
 IRIX 6.5.19m      yes         5325         Notes 2 & 3
 IRIX 6.5.19f      yes         5325         Notes 2 & 3
 IRIX 6.5.20m      yes         5325         Notes 2 & 3
 IRIX 6.5.20f      yes         5325         Notes 2 & 3
 IRIX 6.5.21m      yes         5325         Notes 2 & 3
 IRIX 6.5.21f      yes         5325         Notes 2 & 3
 IRIX 6.5.22       no

    NOTES

      1) This version of the IRIX operating has been retired. Upgrade to
         an actively supported IRIX operating system.  See
         http://support.sgi.com for more information.

      2) If you have not received an IRIX 6.5.X CD for IRIX 6.5, contact
         your SGI Support Provider or URL: http://support.sgi.com

      3) Install the required patch(es) based on your operating release.

              ##### Patch File Checksums ####
Filename:                 README.patch.5325
Algorithm #1 (sum -r):    09719 10 README.patch.5325
Algorithm #2 (sum):       45117 10 README.patch.5325
MD5 checksum:             A4CBCEFAF0DEAC02547FE28E3F96DE25

Filename:                 patchSG0005325
Algorithm #1 (sum -r):    43281 4 patchSG0005325
Algorithm #2 (sum):       16979 4 patchSG0005325
MD5 checksum:             30C299D0A4A769502B119901103DA176

Filename:                 patchSG0005325.eoe_src
Algorithm #1 (sum -r):    46646 378 patchSG0005325.eoe_src
Algorithm #2 (sum):       2177 378 patchSG0005325.eoe_src
MD5 checksum:             CFF0F5ABB9184F94DD7DD401D99FD480

Filename:                 patchSG0005325.eoe_sw
Algorithm #1 (sum -r):    25577 1104 patchSG0005325.eoe_sw
Algorithm #2 (sum):       50436 1104 patchSG0005325.eoe_sw
MD5 checksum:             74A68DFEDFFF4E69B9F604EC39E11CCA

Filename:                 patchSG0005325.idb
Algorithm #1 (sum -r):    52566 4 patchSG0005325.idb
Algorithm #2 (sum):       23751 4 patchSG0005325.idb
MD5 checksum:             04FC1A96D695890B218C2A775FDF0506

Filename:                 README.patch.5326
Algorithm #1 (sum -r):    26888 10 README.patch.5326
Algorithm #2 (sum):       39764 10 README.patch.5326
MD5 checksum:             8B05AFCB0ED432B275577D5BC4F239EF

Filename:                 patchSG0005326
Algorithm #1 (sum -r):    50468 5 patchSG0005326
Algorithm #2 (sum):       36982 5 patchSG0005326
MD5 checksum:             4E67239FCBA46EFE0B1DF506B4F8B472

Filename:                 patchSG0005326.eoe_src
Algorithm #1 (sum -r):    59307 302 patchSG0005326.eoe_src
Algorithm #2 (sum):       19983 302 patchSG0005326.eoe_src
MD5 checksum:             9FA915EE75D1309F7668FF7370DB4845

Filename:                 patchSG0005326.eoe_sw
Algorithm #1 (sum -r):    20247 664 patchSG0005326.eoe_sw
Algorithm #2 (sum):       47682 664 patchSG0005326.eoe_sw
MD5 checksum:             03027855CE6F3549F5051255C6A9284C

Filename:                 patchSG0005326.idb
Algorithm #1 (sum -r):    33356 4 patchSG0005326.idb
Algorithm #2 (sum):       29499 4 patchSG0005326.idb
MD5 checksum:             619CEC1B014DF80EEC6B4FC344941EF4


- ------------------------
- --- Acknowledgments ----
- ------------------------

 SGI wishes to thank sendmail.org and the users of the Internet Community
 at large for their assistance in this matter.


- -------------
- --- Links ---
- -------------

 Patches are available via the web, anonymous FTP and from your SGI
 service/support provider.

 SGI Security Advisories can be found at:
 http://www.sgi.com/support/security/ and

 ftp://patches.sgi.com/support/free/security/advisories/

 SGI Security Patches can be found at:
 http://www.sgi.com/support/security/ and
 ftp://patches.sgi.com/support/free/security/patches/

 SGI patches for IRIX can be found at the following patch servers:
 http://support.sgi.com/ and ftp://patches.sgi.com/

 SGI freeware updates for IRIX can be found at:
 http://freeware.sgi.com/

 SGI fixes for SGI open sourced code can be found on:
 http://oss.sgi.com/projects/

 SGI patches and RPMs for Linux can be found at:
 http://support.sgi.com/

 SGI patches for Windows NT or 2000 can be found at:
 http://support.sgi.com/

 IRIX 5.2-6.4 Recommended/Required Patch Sets can be found at:
 http://support.sgi.com/ and ftp://patches.sgi.com/support/patchset/

 IRIX 6.5 Maintenance Release Streams can be found at:
 http://support.sgi.com/

 IRIX 6.5 Software Update CDs can be obtained from:
 http://support.sgi.com/

 The primary SGI anonymous FTP site for security advisories and patches
 is patches.sgi.com (216.32.174.211).  Security advisories and patches
 are located under the URL ftp://patches.sgi.com/support/free/security/

 For security and patch management reasons, ftp.sgi.com (mirrors
 patches.sgi.com security FTP repository) lags behind and does not
 do a real-time update.


- -----------------------------------------
- --- SGI Security Information/Contacts ---
- -----------------------------------------

 If there are questions about this document, email can be sent to
 security-info@....com.

                       ------oOo------

 SGI provides security information and patches for use by the entire SGI
 community.  This information is freely available to any person needing
 the information and is available via anonymous FTP and the Web.

 The primary SGI anonymous FTP site for security advisories and patches
 is patches.sgi.com (216.32.174.211).  Security advisories and patches
 are located under the URL ftp://patches.sgi.com/support/free/security/

 The SGI Security Headquarters Web page is accessible at the URL:
 http://www.sgi.com/support/security/

 For issues with the patches on the FTP sites, email can be sent to
 security-info@....com.

 For assistance obtaining or working with security patches, please
 contact your SGI support provider.

                       ------oOo------

 SGI provides a free security mailing list service called wiretap and
 encourages interested parties to self-subscribe to receive (via email)
 all SGI Security Advisories when they are released. Subscribing to the
 mailing list can be done via the Web
 (http://www.sgi.com/support/security/wiretap.html)
 or by sending email to SGI as outlined below.

 % mail wiretap-request@....com
 subscribe wiretap < YourEmailAddress such as midwatch@....com >
 end
 ^d

 In the example above, <YourEmailAddress is the email address that you
 wish the mailing list information sent to.  The word end must be on a
 separate line to indicate the end of the body of the message. The
 control-d (^d) is used to indicate to the mail program that you are
 finished composing the mail message.

                       ------oOo------

 SGI provides a comprehensive customer World Wide Web site. This site is
 located at http://www.sgi.com/support/security/ .

                       ------oOo------

 If there are general security questions on SGI systems, email can be
 sent to security-info@....com.

 For reporting *NEW* SGI security issues, email can be sent to
 security-alert@....com or contact your SGI support provider.  A
 support contract is not required for submitting a security report.

______________________________________________________________________________

       This information is provided freely to all interested parties
       and may be redistributed provided that it is not altered in any
       way, SGI is appropriately credited and the document retains and
       includes its valid PGP signature.


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