exploit the possibilities

sms.172.libnsl

sms.172.libnsl
Posted Jul 20, 1998

libnsl

MD5 | 23fc722454592a4dadf2ff19d001741b

sms.172.libnsl

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From jg@FALSE.NET Sat Jul 18 17:48:44 1998
From: joshua grubman <jg@FALSE.NET>
To: BUGTRAQ@NETSPACE.ORG
Date: Wed, 15 Jul 1998 16:49:12 -0400
Subject: Sun Security Bulletin #00172 (fwd)

EOF

---------- Forwarded message ----------
Date: Wed, 15 Jul 1998 12:02:44 -0700
From: Sun Security Coordination Team <secure@sunsc.Eng.Sun.COM>
To: CWS@sunsc.Eng.Sun.COM
Subject: Sun Security Bulletin #00172

-----BEGIN PGP SIGNED MESSAGE-----

________________________________________________________________________________
Sun Microsystems, Inc. Security Bulletin

Bulletin Number: #00172
Date: July 15, 1998
Cross-Ref: RSI.0005.05-14-98.SUN.LIBNSL
Title: libnsl
________________________________________________________________________________

The information contained in this Security Bulletin is provided "AS IS."
Sun makes no warranties of any kind whatsoever with respect to the information
contained in this Security Bulletin. ALL EXPRESS OR IMPLIED CONDITIONS,
REPRESENTATIONS AND WARRANTIES, INCLUDING ANY WARRANTY OF NON-INFRINGEMENT OR
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE
HEREBY DISCLAIMED AND EXCLUDED TO THE EXTENT ALLOWED BY APPLICABLE LAW.

IN NO EVENT WILL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY LOST REVENUE,
PROFIT OR DATA, OR FOR DIRECT, SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL
OR PUNITIVE DAMAGES HOWEVER CAUSED AND REGARDLESS OF ANY THEORY OF LIABILITY
ARISING OUT OF THE USE OF OR INABILITY TO USE THE INFORMATION CONTAINED IN
THIS SECURITY BULLETIN, EVEN IF SUN MICROSYSTEMS, INC. HAS BEEN ADVISED OF
THE POSSIBILITY OF SUCH DAMAGES.

If any of the above provisions are held to be in violation of applicable law,
void, or unenforceable in any jurisdiction, then such provisions are waived
to the extent necessary for this disclaimer to be otherwise enforceable in
such jurisdiction.
________________________________________________________________________________

1. Bulletins Topics

Sun announces the release of patches for Solaris(tm) 2.6, 2.5.1, 2.5
and 2.4 (SunOS(tm) 5.6, 5.5.1, 5.5 and 5.4), which relate to a
vulnerability in libnsl.

Sun estimates that the release of patches for Solaris 2.3 (SunOS 5.3)
that relate to the same vulnerability will be available within 8 weeks
of the date of this bulletin.

Sun strongly recommends that you install the patches listed in section 4
immediately on systems running SunOS 5.6, 5.5.1, 5.5, and 5.4 which use
libnsl.

2. Who is Affected

Vulnerable: SunOS 5.6, 5.6_x86, 5.5.1, 5.5.1_x86, 5.5, 5.5_x86,
5.4, 5.4_x86 and 5.3.

Not vulnerable: All other supported versions of SunOS.

3. Understanding the Vulnerability

The network services library, libnsl, provides functions which may be
used by application programs to interface to network services. Several
buffer overflows have been discovered in the library routines which
could be exploited to gain root access.

4. List of Patches

The following patches are available in relation to the above problem.

SunOS Patch ID
_____ _________
SunOS 5.6 105401-14
SunOS 5.6_x86 105402-14
SunOS 5.5.1 103612-43
SunOS 5.5.1_x86 103613-43
SunOS 5.5 103187-39
SunOS 5.5_x86 103188-39
SunOS 5.4 101973-36
SunOS 5.4_x86 101974-36
SunOS 5.3 101318-91 (to be released in 8 weeks)

_______________________________________________________________________________
APPENDICES

A. Patches listed in this bulletin are available to all Sun customers via
World Wide Web at:

<URL:http://sunsolve.sun.com/sunsolve/pubpatches/patches.html>

B. Checksums for the patches listed in this bulletin are available via
World Wide Web at:

<URL:http://sunsolve.sun.com/sunsolve/pubpatches/patches.html>

C. Sun security bulletins are available via World Wide Web at:

<URL:http://sunsolve.sun.com/pub-cgi/secbul.pl>

D. Sun Security Coordination Team's PGP key is available via World Wide Web
at:

<URL:http://sunsolve.sun.com/sunsolve/secbulletins/SunSCkey.txt>

E. To report or inquire about a security problem with Sun software, contact
one or more of the following:

- Your local Sun answer centers
- Your representative computer security response team, such as CERT
- Sun Security Coordination Team. Send email to:

security-alert@sun.com

F. To receive information or subscribe to our CWS (Customer Warning System)
mailing list, send email to:

security-alert@sun.com

with a subject line (not body) containing one of the following commands:

Command Information Returned/Action Taken
_______ _________________________________

help An explanation of how to get information

key Sun Security Coordination Team's PGP key

list A list of current security topics

query [topic] The email is treated as an inquiry and is forwarded to
the Security Coordination Team

report [topic] The email is treated as a security report and is
forwarded to the Security Coordination Team. Please
encrypt sensitive mail using Sun Security Coordination
Team's PGP key

send topic A short status summary or bulletin. For example, to
retrieve a Security Bulletin #00138, supply the
following in the subject line (not body):

send #138

subscribe Sender is added to our mailing list. To subscribe,
supply the following in the subject line (not body):

subscribe cws your-email-address

Note that your-email-address should be substituted
by your email address.

unsubscribe Sender is removed from the CWS mailing list.
________________________________________________________________________________

Copyright 1998 Sun Microsystems, Inc. All rights reserved. Sun,
Sun Microsystems, Solaris and SunOS are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries. This
Security Bulletin may be reproduced and distributed, provided that this
Security Bulletin is not modified in any way and is attributed to
Sun Microsystems, Inc. and provided that such reproduction and distribution
is performed for non-commercial purposes.


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