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-----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. 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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-----