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AUSCERT External Security Bulletin Redistribution
ESB-1999.186 -- Sun Security Bulletin #00190
10 December 1999
Sun Microsystems, Inc. has released the following bulletin concerning a
buffer overflow vulnerability in the snoop program. This vulnerability
may be exploited by a remote attacker to execute arbitrary instructions
and gain root access.
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Sun Microsystems, Inc. Security Bulletin
Bulletin Number: #00190
Date: December 9, 1999
Cross-Ref: ISS Security Advisory, December 9, 1999
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
1. Bulletins Topics
Sun announces the release of patches for Solaris(tm) 7, 2.6, 2.5.1,
2.5, 2.4, and 2.3 (SunOS(tm) 5.7, 5.6, 5.5.1, 5.5, 5.4 and 5.3), which
relate to a vulnerability with snoop.
Sun recommends that you install the patches listed in section 4
immediately on systems running SunOS 5.7, 5.6, 5.5.1, 5.5, 5.4, and 5.3.
2. Who is Affected
Vulnerable: SunOS 5.7, 5.7_x86, 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 snoop program captures packets from the network and displays their
contents. A buffer overflow vulnerability has been discovered which may
be exploited by a remote attacker to execute arbitrary instructions
and gain root access. The buffer overflow occurs when snoop analyzes
certain types of large requests to the rquotad rpc service.
4. List of Patches
The following patches are available in relation to the above problem.
OS Version Patch ID
SunOS 5.7 108482-01
SunOS 5.7_x86 108483-01
SunOS 5.6 108492-01
SunOS 5.6_x86 108493-01
SunOS 5.5.1 104960-02
SunOS 5.5.1_x86 104961-02
SunOS 5.5 108501-01
SunOS 5.5_x86 108502-01
SunOS 5.4 108490-01
SunOS 5.4_x86 108491-01
SunOS 5.3 108489-01
Sun acknowledges, with thanks, Internet Security Systems (ISS) for bringing
this vulnerability to our attention.
A. Patches listed in this bulletin are available to all Sun customers at:
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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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