Date: 11 February 1999
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AUSCERT External Security Bulletin Redistribution
ESB-1999.017 -- Sun Security Bulletin #00184
Security Vulnerability in man/catman
11 February 1999
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Sun Microsystems, Inc. has released the following security bulletin
concerning a buffer overflow vulnerability discovered in man/catman which
may be exploited to overwrite arbitrary files when man or catman is executed
by root.
The patches mentioned in this bulletin are also available from the AusCERT
FTP mirror at:
ftp://ftp.auscert.org.au/pub/mirrors/sunsolve1.sun.com/
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________________________________________________________________________________
Sun Microsystems, Inc. Security Bulletin
Bulletin Number: #00184
Date: February 10, 1999
Cross-Ref:
Title: man/catman
________________________________________________________________________________
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. Background
The man command displays information from the reference manuals. The
catman utility creates preformatted versions of the on-line manuals.
Vulnerabilities have been discovered with these commands that may be
exploited to overwrite arbitrary files when man or catman is executed
by root.
2. Affected Supported Versions
Solaris(tm) versions: 7, 7_x86, 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
SunOS(tm) versions: 4.1.4 and 4.1.3_U1
3. Recommendations
Sun recommends that you install the respective patches immediately
on affected systems.
Operating System Patch ID
_________________ _________
Solaris 7 107038-01
Solaris 7_x86 107039-01
Solaris 2.6 106123-04
Solaris 2.6_x86 106124-04
Solaris 2.5.1 106905-01
Solaris 2.5.1_x86 106906-01
Solaris 2.5 106907-01
Solaris 2.5_x86 106908-01
Solaris 2.4 106912-01
Solaris 2.4_x86 106962-01
Solaris 2.3 106911-01
SunOS 4.1.4 107157-01
107144-01
SunOS 4.1.3_U1 107156-01
107143-01
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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
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
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query [topic] The email is treated as an inquiry and is forwarded to
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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 1999 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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This security bulletin is provided as a service to AusCERT's members.
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and should be done so in accordance with site policies and procedures.
Previous advisories and external security bulletins can be retrieved from:
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If you believe that your system has been compromised, contact AusCERT or
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Teams).
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
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