SGI Information for VU#569272

System V derived login contains a remotely exploitable buffer overflow

Status

Affected

Vendor Statement

______________________________________________________________________________
SGI Security Advisory

Title: Buffer Overflow in System V Derived Login
Number: 20011201-01-I
Reference: CERTŪ Advisory CA-2001-34
Date: December 17, 2001
______________________________________________________________________________

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 ---
-----------------------

login is a program that local and remote connection mechanisms often
invoke to facilitate logging into a Unix system.

A vulnerability has been discovered in the login program for many
System V-derived Unix implementations that allows unauthorized root
access. More details can be found in CERT advisory CA-2001-34:
http://www.cert.org/advisories/CA-2001-34.html

Silicon Graphics has investigated the issue and finds that IRIX 3.x may
have had this issue, as mentioned in the CERT advisory. Any versions of
IRIX that are more current than IRIX 3.x, including IRIX 4.x, IRIX 5.x,
and IRIX 6.x, do NOT have this login vulnerability, and no further action
is required.

-------------------
--- Information ---
-------------------

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:
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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
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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 CERT and 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
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------oOo------

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------oOo------

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------oOo------

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------oOo------

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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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Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Vendor References

None

Addendum

The CERT/CC has no additional comments at this time.

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