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AUSCERT External Security Bulletin Redistribution
ESB-2007.0515 -- [Win][UNIX/Linux]
Java Secure Socket Extension Does Not Correctly Process SSL/TLS Handshake
Requests Resulting in a Denial of Service (DoS) Condition
4 September 2007
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AusCERT Security Bulletin Summary
---------------------------------
Product: Java 2 Platform, Standard Edition
Publisher: Sun Microsystems
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact: Denial of Service
Access: Remote/Unauthenticated
CVE Names: CVE-2007-3698
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102997-1
Revision History: September 4 2007: Added CVE Name
July 12 2007: Initial Release
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Sun(sm) Alert Notification
* Sun Alert ID: 102997
* Synopsis: Java Secure Socket Extension Does Not Correctly Process
SSL/TLS Handshake Requests Resulting in a Denial of Service (DoS)
Condition
* Category: Security
* Product: Java 2 Platform, Standard Edition
* BugIDs: 6542796
* Avoidance: Patch, Upgrade
* State: Resolved
* Date Released: 10-Jul-2007
* Date Closed: 10-Jul-2007
* Date Modified:
1. Impact
The Java Secure Socket Extension (JSSE) that is included in various
releases of the Java Runtime Environment does not correctly process
SSL/TLS handshake requests. This vulnerability may be exploited to
create a Denial of Service (DoS) condition to the system as a whole on
a server that listens for SSL/TLS connections using JSSE for SSL/TLS
support.
Sun acknowledges with thanks, Cisco Systems for bringing this issue to
our attention.
2. Contributing Factors
This issue can occur in the following releases (for Solaris, Linux,
and Windows):
* JDK and JRE 6 Update 1 and earlier
* JDK and JRE 5.0 Updates 7, 8, 9, 10, and 11
* SDK and JRE 1.4.2_11, _12, _13, and _14
Note: JSSE 1.0.3_xx and earlier, which are optional packages for use
with older versions of the JDK, are not affected by this issue. SDK
and JRE 1.4.2_10 and earlier, and JDK and JRE 5.0 Update 6 and
earlier are also not affected.
To determine the default version of the JRE on a system for Solaris
and Linux, the following command can be run:
% java -version
Note: The above command only determines the default version. Other
versions may also be installed on the system.
To determine the default version of the JRE on a system for Windows:
1. Click "Start"
2. Select "Run"
3. Type "cmd" (starts a command-line)
4. At the prompt, type "java -version"
Note: The above command only determines the default version. Other
versions may also be installed on the system.
3. Symptoms
If this issue has been exploited to cause a Denial of Service to the
system, processes making use of JSSE may be consuming excessive
amounts of CPU, causing the system to run slowly and be unresponsive.
4. Relief/Workaround
There is no workaround for this issue. Please see the Resolution
section below.
5. Resolution
This issue is addressed in the following releases (for Solaris, Linux,
and Windows):
* JDK and JRE 6 Update 2 or later
* JDK and JRE 5.0 Update 12 and later
* SDK and JRE 1.4.2_15 and later
Java SE 6 is available for download at the following links:
http://java.sun.com/javase/downloads/index.jsp
Java SE 6 Update 2 for Solaris is available in the following patches:
* Java SE 6: update 2 (as delivered in patch 125136-02 or later)
* Java SE 6: update 2 (as delivered in patch 125137-02 or later
(64bit))
* Java SE 6_x86: update 2 (as delivered in patch 125138-02 or
later)
* Java SE 6_x86: update 2 (as delivered in patch 125139-02 or
later (64bit))
Java SE 5.0 is available for download at the following link:
http://java.sun.com/j2se/1.5.0/download.jsp
Java SE 5.0 Update 12 for Solaris is available in the following
patches:
* J2SE 5.0: update 12 (as delivered in patch 118666-12 or later)
* J2SE 5.0: update 12 (as delivered in patch 118667-12 or later
(64bit))
* J2SE 5.0_x86: update 12 (as delivered in patch 118668-12 or
later)
* J2SE 5.0_x86: update 12 (as delivered in patch 118669-12 or
later (64bit))
J2SE 1.4.2 is available for download at the following link:
http://java.sun.com/j2se/1.4.2/download.html
Note: When installing a new version of the product from a source other
than a Solaris patch, it is recommended that the old affected versions
be removed from your system. To remove old affected versions on the
Windows platform, please see:
http://java.com/en/download/help/uninstall_java.xml
This Sun Alert notification is being provided to you on an "AS IS"
basis. This Sun Alert notification may contain information provided by
third parties. The issues described in this Sun Alert notification may
or may not impact your system(s). Sun makes no representations,
warranties, or guarantees as to the information contained herein. ANY
AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT
YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE
OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN.
This Sun Alert notification contains Sun proprietary and confidential
information. It is being provided to you pursuant to the provisions of
your agreement to purchase services from Sun, or, if you do not have
such an agreement, the Sun.com Terms of Use. This Sun Alert
notification may only be used for the purposes contemplated by these
agreements.
Copyright 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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