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______________________________________________________________________________
SGI Security Advisory
Title: IRIX IGMP vulnerability
Number: 20011001-01-P
Date: October 22, 2001
Reference: CVE Pending (Advisory will be updated upon receipt of CVE)
______________________________________________________________________________
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 ---
- -----------------------
A malformed IGMP multicast packet under specific conditions can cause
SGI systems running the IRIX operating system to panic.
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 ---
- --------------
SGI systems running the IRIX operating system that are connected
to a network are vulnerable.
A local user account on the vulnerable system is not required
in order to exploit this issue.
The vulnerability can be exploited remotely over an untrusted network.
The vulnerability can lead to a denial of service attack.
This network kernel vulnerability has been publicly discussed in
Usenet newsgroups and security mailing lists.
- --------------------------
- --- Temporary Solution ---
- --------------------------
Unfortunately, there are no immediate or temporary workarounds
that fully address this issue. This issue can only be
fully addressed with the installation of a patch.
- ----------------
- --- Solution ---
- ----------------
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 Note 2
IRIX 6.5.1 yes Note 2
IRIX 6.5.2 yes Note 2
IRIX 6.5.3 yes Note 2
IRIX 6.5.4 yes Note 2
IRIX 6.5.5 yes Note 2
IRIX 6.5.6 yes Note 2
IRIX 6.5.7 yes Note 2
IRIX 6.5.8 yes Note 2
IRIX 6.5.9 yes Note 2
IRIX 6.5.10m yes 4335 Note 2
IRIX 6.5.10f yes 4336 Note 2
IRIX 6.5.11m yes 4344 Note 2
IRIX 6.5.11f yes 4345 Note 2
IRIX 6.5.12m yes 4346 Note 2
IRIX 6.5.12f yes 4347 Note 2
IRIX 6.5.13 no Note 4 & 5
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) This version of the IRIX operating system is in maintenance mode.
Upgrade to an actively supported IRIX operating system.
See http://support.sgi.com/news/support/index.html for more
information.
3) Download the IRIX 6.5.13 Maintenance Release Stream from the URL:
http://support.sgi.com/colls/patches/tools/relstream/index.html
4) If you have not received an IRIX 6.5.13 CD for IRIX 6.5, contact your
SGI Support Provider or URL: http://support.sgi.com/irix/swupdates/
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/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.
##### Patch File Checksums ####
The actual patch will be a tar file containing the following files:
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Filename: patchSG0004335
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MD5 checksum: 12E9E42C0C3F91098C563D31C85BE4B5
Filename: patchSG0004335.eoe_sw
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Filename: patchSG0004335.idb
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MD5 checksum: FE3F1D724CB805BD7318C32600D2A090
Filename: README.patch.4336
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Filename: patchSG0004346.eoe_sw
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- ------------------------
- --- Acknowledgments ----
- ------------------------
SGI wishes to thank the Open Source 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
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For assistance obtaining or working with security patches, please
contact your SGI support provider.
------oOo------
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------oOo------
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------oOo------
If there are general security questions on SGI systems, email can be
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For reporting *NEW* SGI security issues, email can be sent to
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______________________________________________________________________________
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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