Date Discovered May 13, 2009
Description Sun Java Runtime Environment is prone to multiple remote buffer-overflow vulnerabilities because the application fails to perform adequate boundary checks on user-supplied data.
Successfully exploiting these issues allows remote attackers to execute arbitrary code in the context of the application using the ActiveX control (typically Internet Explorer). Failed exploit attempts will likely result in denial-of-service conditions.
Java Runtime Environment 6 Update 13 is vulnerable; other versions may also be affected.
NOTE: These issues may be related to the vulnerabilities described in BID 35945 (Sun JRE/JDK Java Web Start ActiveX Control ATL Remote Code Execution Vulnerability).
- Sun JRE (Linux Production Release) 1.6.0 01
- Sun JRE (Linux Production Release) 1.6.0 02
- Sun JRE (Linux Production Release) 1.6.0 03
- Sun JRE (Linux Production Release) 1.6.0 04
- Sun JRE (Linux Production Release) 1.6.0 05
- Sun JRE (Linux Production Release) 1.6.0 06
- Sun JRE (Linux Production Release) 1.6.0 07
- Sun JRE (Linux Production Release) 1.6.0 10
- Sun JRE (Linux Production Release) 1.6.0 11
- Sun JRE (Linux Production Release) 1.6.0 12
- Sun JRE (Linux Production Release) 1.6.0 13
Block external access at the network boundary, unless external parties require service. Filter access to the affected computer at the network boundary if global access isn't needed. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.
Deploy network intrusion detection systems to monitor network traffic for malicious activity. Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include NOP sleds and unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.
Run all software as a nonprivileged user with minimal access rights. To reduce the impact of latent vulnerabilities, always run nonadministrative software as an unprivileged user with minimal access rights.
Set web browser security to disable the execution of script code or active content.
Since a successful exploit of these issues allows malicious code to execute in web clients, consider disabling support
for script code and active content within the client browser. Note that this mitigation tactic might adversely affect
legitimate websites that rely on the execution of browser-based script code.
Reports indicate that these issues have been fixed. Please see the references for more information.
Copyright © Symantec Corporation.
Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from email@example.com
The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.
Symantec, Symantec products, Symantec Security Response, and firstname.lastname@example.org
are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.