__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Center
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INFORMATION BULLETIN
Sun Bytecode Verifier Vulnerability
[Sun Security Bulletin #00218]
March 19, 2002 20:00 GMT Number M-060
______________________________________________________________________________
PROBLEM: A vulnerability in the Java(TM) Runtime Environment Bytecode
Verifier may be exploited by an untrusted applet to escalate
privileges.
PLATFORM: Systems running the following:
Netscape 6.2.1 and earlier
Netscape(TM) Communicator version 4.79 and earlier
Microsoft VM up to and including build 3802
This issue may or may not affect other vendors' Java technology
implementations which are derived from Sun's SDK and JDK(TM)
source bases.
DAMAGE: An untrusted applet may be used to escalate privileges.
SOLUTION: Install the latest releases as indicated below.
______________________________________________________________________________
VULNERABILITY The risk is MEDIUM. An untrusted applet would have to be used
ASSESSMENT: to exploit this vulnerability.
______________________________________________________________________________
LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/m-060.shtml
ORIGINAL BULLETIN: http://www.sunsolve.sun.com/pub-cgi/retrieve.pl?
doctype=coll&doc=secbull/218&type=0&nav=sec.sba
______________________________________________________________________________
[***** Start Sun Security Bulletin #00218 *****]
___________________________________________________________________________
Sun Microsystems, Inc. Security Bulletin
Bulletin Number: #00218
Date: March 18, 2002
Cross-Ref:
Title: Bytecode Verifier
___________________________________________________________________________
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
A vulnerability in the Java(TM) Runtime Environment Bytecode Verifier
may be exploited by an untrusted applet to escalate privileges.
The full and custom installations of Netscape 6.2.1 and earlier
are affected since they include an affected version of the
Java Runtime Environment. The default Java runtime environments of
Netscape(TM) Communicator version 4.79 and earlier are affected.
For more information, see
http://home.netscape.com/security
Microsoft VM up to and including build 3802 is affected.
For more information, see
http://www.microsoft.com/technet/security/bulletin/MS02-013.asp
This issue may or may not affect other vendors' Java technology
implementations which are derived from Sun's SDK and JDK(TM) source
bases. Sun has notified and made the remedy available to its Java
technology licensees.
Sun recommends that users of affected releases upgrade to the latest
SDK, JDK, and JRE releases listed in section 3 of this bulletin.
2. Affected Releases
The following releases are affected:
Windows Production Releases
SDK and JRE 1.3.1_01a or earlier
SDK and JRE 1.3.0_05 or earlier
SDK and JRE 1.2.2_010 or earlier
JDK and JRE 1.1.8_008 or earlier
Solaris(TM) Operating Environment (OE) Reference Releases
SDK and JRE 1.2.2_010 or earlier
JDK and JRE 1.1.8_008 or earlier
Solaris OE Production Releases
SDK and JRE 1.3.1_01 or earlier
SDK and JRE 1.3.0_05 or earlier
SDK and JRE 1.2.2_10 or earlier
JDK and JRE 1.1.8_14 or earlier
Linux Production Releases
SDK and JRE 1.3.1_01 or earlier
SDK and JRE 1.3.0_05 or earlier
SDK and JRE 1.2.2_010 or earlier
Releases prior to SDK and JRE 1.2.2, and JDK and JRE 1.1.8 for
Windows and Solaris are also affected and should no longer be used.
Users of these releases should upgrade to a later release listed in
Section 3.
This vulnerability does not affect the Java 2 SDK, Standard Edition,
v 1.4.
3. Latest Releases
Windows Production Releases
SDK and JRE 1.4 http://java.sun.com/j2se/1.4/
SDK and JRE 1.3.1_02 http://java.sun.com/j2se/1.3/
SDK and JRE 1.2.2_011 http://java.sun.com/j2se/1.2/
JDK and JRE 1.1.8_009
http://java.sun.com/products/jdk/1.1/download-jdk-windows.html
Solaris OE Reference Releases
SDK and JRE 1.2.2_011 http://java.sun.com/j2se/1.2/
JDK and JRE 1.1.8_009
http://java.sun.com/products/jdk/1.1/download-jdk-solaris.html
Solaris OE Production Releases
SDK and JRE 1.4 http://java.sun.com/j2se/1.4/
SDK and JRE 1.3.1_02 http://java.sun.com/j2se/1.3/
SDK and JRE 1.2.2_11 http://java.sun.com/j2se/1.2/
JDK and JRE 1.1.8_15
http://java.sun.com/products/jdk/1.1/download-jdk-solaris.html
Linux Production Releases
SDK and JRE 1.4 http://java.sun.com/j2se/1.4/
SDK and JRE 1.3.1_02 http://java.sun.com/j2se/1.3/
SDK and JRE 1.2.2_011 http://java.sun.com/j2se/1.2/
__________________________________________________________________________
Sun acknowledges, with thanks, Trusted Logic S.A. for bringing this
issue to our attention.
__________________________________________________________________________
APPENDICES
A. Sun security bulletins are available at:
http://sunsolve.sun.com/security
B. Sun Security Coordination Team's PGP key is available at:
http://sunsolve.sun.com/pgpkey.txt
C. 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
D. 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 2002 Sun Microsystems, Inc. All rights reserved. Sun,
Sun Microsystems, the Sun logo, Solaris, Java, and JDK are trademarks or
registered trademarks of Sun Microsystems, Inc. in the United States and
other countries. Netscape is a trademark or registered trademark of
Netscape Communications Corporation 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.
[***** End Sun Security Bulletin #00218 *****]
_______________________________________________________________________________
CIAC wishes to acknowledge the contributions of Sun Microsystems, Inc. for the
information contained in this bulletin.
_______________________________________________________________________________
CIAC, the Computer Incident Advisory Center, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.
CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
Voice: +1 925-422-8193 (7x24)
FAX: +1 925-423-8002
STU-III: +1 925-423-2604
E-mail: ciac@ciac.org
Previous CIAC notices, anti-virus software, and other information are
available from the CIAC Computer Security Archive.
World Wide Web: http://www.ciac.org/
Anonymous FTP: ftp.ciac.org
PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
communities receive CIAC bulletins. If you are not part of these
communities, please contact your agency's response team to report
incidents. Your agency's team will coordinate with CIAC. The Forum of
Incident Response and Security Teams (FIRST) is a world-wide
organization. A list of FIRST member organizations and their
constituencies can be obtained via WWW at http://www.first.org/.
This document was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States
Government nor the University of California nor any of their
employees, makes any warranty, express or implied, or assumes any
legal liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process
disclosed, or represents that its use would not infringe privately
owned rights. Reference herein to any specific commercial products,
process, or service by trade name, trademark, manufacturer, or
otherwise, does not necessarily constitute or imply its endorsement,
recommendation or favoring by the United States Government or the
University of California. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
Government or the University of California, and shall not be used for
advertising or product endorsement purposes.
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