From agent99@sgi.com Tue Mar 4 18:15:35 2003 From: SGI Security Coordinator To: agent99@sgi.com Newsgroups: comp.sys.sgi.announce, comp.security.unix, comp.sys.sgi.admin, comp.security.announce Date: Mon, 3 Mar 2003 09:09:17 -0800 Subject: Mail Header Buffer Overflow In Sendmail -----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SGI Security Advisory Title : Mail Header Buffer Overflow In Sendmail Number : 20030301-01-P Date : March 3, 2003 Reference: CERT VU#398025 Reference: CERT CA-2003-07 Reference: CVE CAN-2002-1337 Reference: SGI BUG 869098 875386 880975 Fixed in : IRIX 6.5.20 or patches 4975 and 4976 ______________________________________________________________________________ - ----------------------- - --- Issue Specifics --- - ----------------------- ISS and sendmail.org have reported that there is a vulnerability involving mail header manipulation that can result in a remote user gaining root access to a system receiving mail through sendmail. http://www.sendmail.org/8.12.8.html http://www.cert.org/advisories/CA-2003-07.html http://www.kb.cert.org/vuls/id/398025 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1337 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. These issues have been corrected with patches and in future releases of IRIX. - -------------- - --- Impact --- - -------------- The sendmail binary is installed by default on IRIX 6.5 systems as part of eoe.sw.base. 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 6.5.19f The first number ("6.5") is the release name, the second ("6.5.16f" in this case) is the extended release name. The extended release name is the "version" we refer to throughout this document. - ---------------------------- - --- Temporary Workaround --- - ---------------------------- At this time, there is no effective workaround (other than disabling sendmail) for these problems. SGI recommends either upgrading to IRIX 6.5.20, 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 6.5.20 when available, 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 yes Notes 2 & 3 IRIX 6.5.1 yes Notes 2 & 3 IRIX 6.5.2 yes Notes 2 & 3 IRIX 6.5.3 yes Notes 2 & 3 IRIX 6.5.4 yes Notes 2 & 3 IRIX 6.5.5 yes Notes 2 & 3 IRIX 6.5.6 yes Notes 2 & 3 IRIX 6.5.7 yes Notes 2 & 3 IRIX 6.5.8 yes Notes 2 & 3 IRIX 6.5.9 yes Notes 2 & 3 IRIX 6.5.10 yes Notes 2 & 3 IRIX 6.5.11 yes Notes 2 & 3 IRIX 6.5.12 yes Notes 2 & 3 IRIX 6.5.13 yes Notes 2 & 3 IRIX 6.5.14 yes Notes 2 & 3 IRIX 6.5.15 yes 4975 Notes 2, 4 & 5 IRIX 6.5.16 yes 4975 Notes 2, 4 & 5 IRIX 6.5.17 yes 4975 Notes 2, 4 & 5 IRIX 6.5.18 yes 4975 Notes 2, 4 & 5 IRIX 6.5.19 yes 4976 Notes 2, 4 & 6 IRIX 6.5.20 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/irix/news/index.html#policy 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/irix/swupdates/ 3) Upgrade to IRIX 6.5.20 4) Install the patch 5) This patch also fixes the smrsh issue discussed in SGI Security Bulletin 20030101-01-P. 6) This patch also fixes the relaying issue discussed in SGI Security Bulletin 20030101-01-P. - ------------------------ - --- Acknowledgments ---- - ------------------------ SGI wishes to thank sendmail.org, ISS, CERT, and the users of the Internet Community at large for their assistance in this matter. ##### Patch File Checksums #### The actual patch will be a tar file containing the following files: Filename: README.patch.4975 Algorithm #1 (sum -r): 61521 9 README.patch.4975 Algorithm #2 (sum): 25521 9 README.patch.4975 MD5 checksum: 36F1CC6821BD6AA156951FFEA349D653 Filename: patchSG0004975 Algorithm #1 (sum -r): 65365 4 patchSG0004975 Algorithm #2 (sum): 15609 4 patchSG0004975 MD5 checksum: 0B50824803A534AFEF6AE074254C6ECF Filename: patchSG0004975.eoe_src Algorithm #1 (sum -r): 02599 40 patchSG0004975.eoe_src Algorithm #2 (sum): 47170 40 patchSG0004975.eoe_src MD5 checksum: A1427ED806F47C55D60FE10FD2D0E922 Filename: patchSG0004975.eoe_sw Algorithm #1 (sum -r): 41601 664 patchSG0004975.eoe_sw Algorithm #2 (sum): 1123 664 patchSG0004975.eoe_sw MD5 checksum: 125B6C161F3D2C059ED9A59149CBE5CF Filename: patchSG0004975.idb Algorithm #1 (sum -r): 56619 3 patchSG0004975.idb Algorithm #2 (sum): 22297 3 patchSG0004975.idb MD5 checksum: DB212D6419F6D3ED75EBF12BEBB3A0CB Filename: README.patch.4976 Algorithm #1 (sum -r): 11333 9 README.patch.4976 Algorithm #2 (sum): 28069 9 README.patch.4976 MD5 checksum: E9A15B90ACB4E6BA3C507D29A541F9AB Filename: patch4976.pgp.and.chksums Algorithm #1 (sum -r): 00000 0 patch4976.pgp.and.chksums Algorithm #2 (sum): 0 0 patch4976.pgp.and.chksums MD5 checksum: D41D8CD98F00B204E9800998ECF8427E Filename: patchSG0004976 Algorithm #1 (sum -r): 42535 3 patchSG0004976 Algorithm #2 (sum): 12972 3 patchSG0004976 MD5 checksum: B38B1916E6F9DA5AAD5C40A9F06CBCE8 Filename: patchSG0004976.eoe_src Algorithm #1 (sum -r): 01627 90 patchSG0004976.eoe_src Algorithm #2 (sum): 15487 90 patchSG0004976.eoe_src MD5 checksum: F5202E76911399D770DFEC254952142A Filename: patchSG0004976.eoe_sw Algorithm #1 (sum -r): 34746 1096 patchSG0004976.eoe_sw Algorithm #2 (sum): 7255 1096 patchSG0004976.eoe_sw MD5 checksum: CFAE2CE94C0D9A222AECE0FC74E9BF48 Filename: patchSG0004976.idb Algorithm #1 (sum -r): 16935 2 patchSG0004976.idb Algorithm #2 (sum): 10290 2 patchSG0004976.idb MD5 checksum: 05D387D9FCF8CEA9520C7C41939B9A6D - ------------- - --- Links --- - ------------- 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/irix/ 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/linux/ or http://oss.sgi.com/projects/sgilinux-combined/download/security-fixes/ SGI patches for Windows NT or 2000 can be found at: http://support.sgi.com/nt/ IRIX 5.2-6.4 Recommended/Required Patch Sets can be found at: http://support.sgi.com/irix/ and ftp://patches.sgi.com/support/patchset/ IRIX 6.5 Maintenance Release Streams can be found at: http://support.sgi.com/colls/patches/tools/relstream/index.html IRIX 6.5 Software Update CDs can be obtained from: http://support.sgi.com/irix/swupdates/ 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@sgi.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@sgi.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@sgi.com subscribe wiretap end ^d In the example above, 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@sgi.com. For reporting *NEW* SGI security issues, email can be sent to security-alert@sgi.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. -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBPmOKhrQ4cFApAP75AQGCgQP+LQWKhquGwxA7Eo02KROYByVSG5mc1c93 X5vXPECAjcLLHJVL0ITObm20Oj0DRC8c6JwTmNfPLPlY62CUWXjb0fKTuogh0OhN TV6ae39vWPVSmZFAikp+wED5eG6+bm5jremvqOqelrQNJ+MfN4CwPfGXn/ENS3pb Us2/h+yOwyE= =BORz -----END PGP SIGNATURE-----