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AUSCERT External Security Bulletin Redistribution
ESB-98.194 -- Sun Security Bulletin #00182
Security Vulnerability with passwd
18 December 1998
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Sun Microsystems, Inc. has released the following bulletin concerning a
vulnerability discovered in the passwd utility which could be exploited to
perform a denial of service attack.
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________________________________________________________________________________
Sun Microsystems, Inc. Security Bulletin
Bulletin Number: #00182
Date: December 17, 1998
Cross-Ref:
Title: passwd
________________________________________________________________________________
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
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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. Background
The passwd command changes passwords and password attributes. A
vulnerability has been discovered in the passwd utility which could
be exploited to create a denial of service.
2. Affected Supported Versions
Solaris(tm) versions: 2.6, 2.6_x86, 2.5.1, 2.5.1_x86, 2.5, 2.5_x86,
2.4, 2.4_x86 and 2.3
3. Recommendations
Sun recommends that you install the respective patches immediately
on affected systems.
Operating System Patch ID
_________________ _________
Solaris 2.6 106271-04
Solaris 2.6_x86 106272-04
Solaris 2.5.1 104433-09
Solaris 2.5.1_x86 104434-08
Solaris 2.5 103178-09
Solaris 2.5_x86 103179-09
Solaris 2.4 101945-60
Solaris 2.4_x86 101946-53
Solaris 2.3 101318-91
_______________________________________________________________________________
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/sunsolve/secbulletins>
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
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- Your local Sun answer centers
- Your representative computer security response team, such as CERT
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security-alert@sun.com
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________________________________________________________________________________
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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