From agent99@sgi.com Tue Aug 13 03:29:47 2002 From: SGI Security Coordinator To: agent99@sgi.com Date: Wed, 7 Aug 2002 14:51:40 -0700 (PDT) Subject: BIND vulnerabilities in IRIX named [The following text is in the "iso-8859-1" character set] [Your display is set for the "US-ASCII" character set] [Some characters may be displayed incorrectly] -----BEGIN PGP SIGNED MESSAGE----- _____________________________________________________________________________ SGI Security Advisory Title: BIND vulnerabilities Number: 19991101-02-I Date: August 7, 2002 Reference: SGI Security Advisory 19991101-01-I Reference: CERTŪ Advisory CA-1999-14 Reference: CVE-1999-0849 Reference: CVE-1999-0851 _____________________________________________________________________________ - ----------------------- - --- Issue Specifics --- - ----------------------- As part of on going security efforts, this is a followup to SGI Security Advisory 19991101-01-I. The BIND distribution provides Internet domain name service known as DNS thru a daemon called named. ISC and CERT have reported several vulnerabilities discovered in certain versions of BIND distributions. These vulnerabilities can be used to perform denial of service attacks and/or to obtain privileged access remotely. SGI has investigated the issue and provides the following information for customer interpretation and possible action. - -------------- - --- Impact --- - -------------- SGI distributes BIND based on version 4.9.4 patchlevel 1 with IRIX 6.5, but it is not installed by default. It is part of the package eoe.sw.named. To determine the version of IRIX you are running, execute the following command: # uname -R That will return a result similar to the following: # 6.5 6.5.16f 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. To see if BIND is installed, execute the following command: % versions eoe.sw.named I = Installed, R = Removed Name Date Description I eoe 12/12/2001 IRIX Execution Environment, 6.5.14f I eoe.sw 12/12/2001 IRIX Execution Environment Software I eoe.sw.named 12/12/2001 Berkeley Internet Name Domain Server These vulnerabilities were reported by Internet Software Consortium (ISC): http://www.isc.org/products/BIND/bind-security-19991108.html These vulnerabilities were also reported by CERT(sm) in Advisory CA-1999-14: http://www.cert.org/advisories/CA-1999-14.html The denial of service in BIND named via maxdname was assigned CVE: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-1999-0849 The denial of service in BIND named via naptr was assigned CVE: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-1999-0851 These vulnerabilities have been publicly discussed in public Usenet newsgroups and Internet mailing lists. - -------------------------- - --- Temporary Solution --- - -------------------------- Unfortunately, there are no immediate or temporary workarounds for this issue if you need to run a local nameserver. SGI recommends either installing the appropriate patch from the list below or upgrading to IRIX 6.5.18 when it is released. - ---------------- - --- Solution --- - ---------------- SGI has provided a patch for these vulnerabilities. Our recommendation is to upgrade to IRIX 6.5.18 when available, or install the appropriate patch. This patch updates BIND to version 4.9.8 patchlevel 1 and provides a chroot jail option for named. 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 4725 Note 4 IRIX 6.5.14 yes 4725 Note 4 IRIX 6.5.15 yes 4725 Note 4 IRIX 6.5.16 yes 4725 Note 4 IRIX 6.5.17 yes 4725 Note 4 IRIX 6.5.18 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 6.5.18. 4) For best security, configure named to run in a chroot jail, per the instructions in the named man page and the release notes supplied with patch 4275. ##### Patch File Checksums #### The actual patch will be a tar file containing the following files: Filename: README.patch.4725 Algorithm #1 (sum -r): 47466 9 README.patch.4725 Algorithm #2 (sum): 18164 9 README.patch.4725 MD5 checksum: 11CB51FFF166126F98472088CB96A22B Filename: patchSG0004725 Algorithm #1 (sum -r): 58773 5 patchSG0004725 Algorithm #2 (sum): 56317 5 patchSG0004725 MD5 checksum: 5A61B164228B241DC34DADE95337807A Filename: patchSG0004725.eoe_man Algorithm #1 (sum -r): 43866 39 patchSG0004725.eoe_man Algorithm #2 (sum): 43362 39 patchSG0004725.eoe_man MD5 checksum: 6C004F572C6A57973B23F6B940E02FC7 Filename: patchSG0004725.eoe_sw Algorithm #1 (sum -r): 31793 411 patchSG0004725.eoe_sw Algorithm #2 (sum): 52735 411 patchSG0004725.eoe_sw MD5 checksum: 34D2F1E205181CBF855D882855CDCC76 Filename: patchSG0004725.idb Algorithm #1 (sum -r): 26064 2 patchSG0004725.idb Algorithm #2 (sum): 6527 2 patchSG0004725.idb MD5 checksum: FFDD998D739E5646A4F010D299F69464 - ------------------------ - --- Acknowledgments ---- - ------------------------ SGI wishes to thank ISC, CERT, Solar Designer, The Openwall Project, and the users of the Internet Community at large for their assistance in this matter. - ------------- - --- 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). 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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 iQCVAwUBPVGTFLQ4cFApAP75AQG6JAP+LFNX5wJoQ75p6/MiFazWFtpKKEa3C1da 9NyCulF0sFLY9/jk18RcDgIxASZrTuiu64mjZodjW1RrHU36zkPYinrSbIjAhwMq sTxnH3EiEY707hzDQqYaFO2knoNIXtuuMmTrYa9bJFehRrvEQDYAL2T7o6vTxDRJ 6f9dIM3rjqg= =vL8o -----END PGP SIGNATURE-----