IRIX Networking Security Updates
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______________________________________________________________________________
SGI Security Advisory
Title: IRIX Networking Security Updates
Number: 20050502-01-P
Date: May 5, 2004
Reference: SGI BUGS 904229, 902072, 901074, 897764, 897747, 894910,
890567, 871383, 773203
Fixed in: Patches 5454, 5461, 5437, 5466, 5451, 5440, 5415, 5416 and 5510
Fixed in: Driver Patches 5509 (.22) and 5513 (.20/.21)
______________________________________________________________________________
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 ---
- -----------------------
It has been reported thru various channel that there are several
security issues affecting IRIX networking.
* various fixes to mitigate the non-network consequences of
extreme UDP/interrupt DoS attacks (SGI BUG 773203, 897764)
* blocking SYN+FIN and illogical TCP flags combos from achieving
3-way handshake (SGI BUG 871383)
http://online.securityfocus.com/archive/1/296558/2002-10-19/2002-10-25/1
* ifconfig "-arp" argument does not disable arp requests being
sent or received (SGI BUG 890567)
* arp DOS vulnerability (SGI BUG 902072)
http://www.auscert.org.au/render.html?it=3489&cid=1
These patches also contain non-security fixes. Note that on IRIX 6.5.20
thru IRIX 6.5.22 two patches are required. Both patches MUST be
installed together or system instability could occur.
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 ---
- --------------
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 6.5.21f
The first number ("6.5") is the release name, the second ("6.5.21f" in
this case) is the extended release name. The extended release name
is the "version" we refer to throughout this document.
- ----------------
- --- Solution ---
- ----------------
SGI has provided a series of patches for these vulnerabilities. Our
recommendation is to upgrade to IRIX 6.5.23, or install the appropriate
patches.
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 1
IRIX 6.5.1 yes Note 1
IRIX 6.5.2 yes Note 1
IRIX 6.5.3 yes Note 1
IRIX 6.5.4 yes Note 1
IRIX 6.5.5 yes Note 1
IRIX 6.5.6 yes Note 1
IRIX 6.5.7 yes Note 1
IRIX 6.5.8 yes Note 1
IRIX 6.5.9 yes Note 1
IRIX 6.5.10 yes Note 1
IRIX 6.5.11 yes Note 1
IRIX 6.5.12 yes Note 1
IRIX 6.5.13 yes Note 1
IRIX 6.5.14 yes Note 1
IRIX 6.5.15 yes Note 1
IRIX 6.5.16 yes Note 1
IRIX 6.5.17m yes Note 1
IRIX 6.5.17f yes Note 1
IRIX 6.5.18m yes 5454 Notes 2 & 3
IRIX 6.5.18f yes 5461 Notes 2 & 3
IRIX 6.5.19m yes 5437 Notes 2 & 3
IRIX 6.5.19f yes 5466 Notes 2 & 3
IRIX 6.5.20m yes 5510 & 5513 Notes 2 & 3 (Install both patches)
IRIX 6.5.20f yes 5440 & 5513 Notes 2 & 3 (Install both patches)
IRIX 6.5.21m yes 5415 & 5513 Notes 2 & 3 (Install both patches)
IRIX 6.5.21f yes 5416 & 5513 Notes 2 & 3 (Install both patches)
IRIX 6.5.22m yes 5469 & 5509 Notes 2 & 3 (Install both patches)
NOTES
1) This version of the IRIX operating has been retired or no
longer actively supported. 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) Install the required patch(es) based on your operating release.
Note that on IRIX 6.5.20 thru IRIX 6.5.22 two patches are required.
Both patches MUST be installed in order to prevent system instability.
##### Patch File Checksums ####
The actual patch will be a tar file containing the following files:
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- ------------------------
- --- Acknowledgments ----
- ------------------------
SGI wishes to thank the FreeBSD security folks, MIT Lincoln Labs, Lockheed
Martin, Iowa State, and Paul Starzetz for their assistance in this matter.
- -------------
- --- Links ---
- -------------
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/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.
- -----------------------------------------
- --- SGI Security Information/Contacts ---
- -----------------------------------------
If there are questions about this document, email can be sent to
security-info@xxxxxxxx
------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@xxxxxxxx
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@xxxxxxx
subscribe wiretap <YourEmailAddress such as midwatch@xxxxxxx >
end
^d
In the example above, <YourEmailAddress> 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@xxxxxxxx
For reporting *NEW* SGI security issues, email can be sent to
security-alert@xxxxxxx 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.
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