From agent99@sgi.com Wed Apr 2 19:43:42 2003 From: SGI Security Coordinator To: agent99@sgi.com Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com, vulnwatch@vulnwatch.org Newsgroups: comp.sys.sgi.announce, comp.security.unix, comp.sys.sgi.admin, comp.security.announce Date: Wed, 2 Apr 2003 13:36:56 -0800 Subject: [Full-Disclosure] Sendmail parseaddr security vulnerability on IRIX -----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SGI Security Advisory Title : Sendmail parseaddr security vulnerability Number : 20030401-01-P Date : April 2, 2003 Reference: CERT CA-2003-12 Reference: CERT VU#897604 Reference: CVE CAN-2003-0161 Reference: SGI BUG 886104 Fixed in : IRIX 6.5.20 or patches 5045 and 5046 ______________________________________________________________________________ - ----------------------- - --- Issue Specifics --- - ----------------------- It's been reported that there is a vulnerability in Sendmail versions 8.12.8 and prior. The address parser performs insufficient bounds checking in certain conditions due to a char to int conversion, making it possible for an attacker to take control of the application. This vulnerability may be exploited by a remote attacker, no local account is required. It may be possible to gain root access through this vulnerability. See the following: http://lists.netsys.com/pipermail/full-disclosure/2003-March/008973.html http://www.cert.org/advisories/CA-2003-12.html http://www.sendmail.org/8.12.9.html http://www.kb.cert.org/vuls/id/897604 for additional information. 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 5045 Notes 2, 4, 5, and 7 IRIX 6.5.16 yes 5045 Notes 2, 4, 5, and 7 IRIX 6.5.17 yes 5045 Notes 2, 4, 5, and 7 IRIX 6.5.18 yes 5045 Notes 2, 4, 5, and 7 IRIX 6.5.19 yes 5046 Notes 2, and 4-7 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/ 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) Upgrade to IRIX 6.5.20 4) Install the patch. Note that the patches don't actually upgrade the version # of sendmail, but do contain the fixes. 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. 7) This patch also fixes the remote buffer overflow issue discussed in SGI Security Advisory 20030301-01-P. ##### Patch File Checksums #### The actual patch will be a tar file containing the following files: Filename: README.patch.5045 Algorithm #1 (sum -r): 17058 9 README.patch.5045 Algorithm #2 (sum): 29710 9 README.patch.5045 MD5 checksum: 2A11FB27058D75290D57687B128F0731 Filename: patchSG0005045 Algorithm #1 (sum -r): 25641 5 patchSG0005045 Algorithm #2 (sum): 25640 5 patchSG0005045 MD5 checksum: 4D63C59F6CDFDB3AAB7E3D337890D037 Filename: patchSG0005045.eoe_src Algorithm #1 (sum -r): 19317 302 patchSG0005045.eoe_src Algorithm #2 (sum): 12694 302 patchSG0005045.eoe_src MD5 checksum: 870AB3F3367587C6027EDA08988B5DDF Filename: patchSG0005045.eoe_sw Algorithm #1 (sum -r): 39041 664 patchSG0005045.eoe_sw Algorithm #2 (sum): 49516 664 patchSG0005045.eoe_sw MD5 checksum: 5EA5D446929D0F2883FC50DDA66FF301 Filename: patchSG0005045.idb Algorithm #1 (sum -r): 26055 4 patchSG0005045.idb Algorithm #2 (sum): 29470 4 patchSG0005045.idb MD5 checksum: 74EF204CA7A672387C027D5AC1D71EAB Filename: README.patch.5046 Algorithm #1 (sum -r): 08295 9 README.patch.5046 Algorithm #2 (sum): 31372 9 README.patch.5046 MD5 checksum: 57F117DEE0E093D6542627AB3042E492 Filename: patchSG0005046 Algorithm #1 (sum -r): 26132 3 patchSG0005046 Algorithm #2 (sum): 21318 3 patchSG0005046 MD5 checksum: 34947E773F7D560FA88126A9D7EB4727 Filename: patchSG0005046.eoe_src Algorithm #1 (sum -r): 25109 367 patchSG0005046.eoe_src Algorithm #2 (sum): 36323 367 patchSG0005046.eoe_src MD5 checksum: 056CA18219771716E036242FA7E29CF1 Filename: patchSG0005046.eoe_sw Algorithm #1 (sum -r): 35988 1103 patchSG0005046.eoe_sw Algorithm #2 (sum): 42426 1103 patchSG0005046.eoe_sw MD5 checksum: BAA9C61B8216491FE8CE6AC0C508590B Filename: patchSG0005046.idb Algorithm #1 (sum -r): 35518 4 patchSG0005046.idb Algorithm #2 (sum): 7374 4 patchSG0005046.idb MD5 checksum: 42BFA979BB5F0327CF329CDD21033972 - ------------- - --- 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/ 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/ 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/ 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. - ------------------------ - --- Acknowledgments ---- - ------------------------ SGI wishes to thank Michal Zalewski, sendmail.org and the users of the Internet Community at large for their assistance in this matter. - ----------------------------------------- - --- 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 iQCVAwUBPotWYbQ4cFApAP75AQH5DgP/Xe+S6v4aStNTcMX/gdMJwJt2Mai8GkPG L0bmJcx644qzrHrHy/+/RZpnRxNWX3SETgJLwxAHBbBre23w6IeQ88jW19ZkEoj0 rRf2LwiZC1Zm/Ra9zb4tF2QFvWRXgzErcFRvRccKb48i1yPDCKZov2KUBUwnXZ/h r8uMyqw8TYI= =vBwE -----END PGP SIGNATURE----- _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html