Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2010.0308
Oracle Java Runtime Environment Image FIle Buffer Overflow Vulnerability
31 March 2010
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Java Runtime Environment
Publisher: iDEFENSE
Operating System: Windows
Linux variants
Mac OS X
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution: Patch/Upgrade
Original Bulletin:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=865
- --------------------------BEGIN INCLUDED TEXT--------------------
iDefense Security Advisory 03.30.10
http://labs.idefense.com/intelligence/vulnerabilities/
Mar 30, 2010
I. BACKGROUND
The Java Runtime Environment (JRE) is the Sun Microsystems
implementation of the Java run-time. For more information, visit the
link shown below.
http://www.sun.com/java/
II. DESCRIPTION
Remote exploitation of a buffer overflow vulnerability in Oracle Corp.'s
(formerly Sun Microsystems Inc.) Java Runtime Environment (JRE) could
allow an attacker to execute arbitrary code with the privileges of the
current user. The JRE is a platform that supports the execution of
programs that are developed using the Java programming language. It is
available for multiple platforms, including Windows, Linux and MacOS.
The JRE platform also supports Java Applets, which can be loaded from
Web pages. During the processing of an image file, user-controlled data
is trusted and can result in an undersized allocation of a heap buffer.
A copy operation into the heap buffer can lead to a heap overflow
condition within the JRE. This condition may allow a remote attacker to
subvert execution control and execute arbitrary code.
III. ANALYSIS
Exploitation of this vulnerability results in the execution of arbitrary
code with the privileges of the user viewing the Web page. To exploit
this vulnerability, a targeted user must visit a website and load a
malicious Java Applet created by an attacker. An attacker typically
accomplishes this via social engineering or injecting content into a
compromised, trusted site.
IV. DETECTION
iDefense has confirmed the existence of this vulnerability in version
1.6.0u17 of Java Runtime Environment. iDefense tested the exploitation
of this vulnerability on Windows XP SP3 and Windows XP SP2. A full list
of affected Oracle products can be found in the Oracle Java SE and Java
for Business Critical Patch Update Advisory.
V. WORKAROUND
iDefense is currently unaware of any workarounds for this issue.
VI. VENDOR RESPONSE
Oracle Corp. has released a patch which addresses this issue. For more
information, consult their advisory at the following URL.
http://www.oracle.com/technology/deploy/security/critical-patch-updates/javacpumar2010.html
VII. CVE INFORMATION
A Mitre Corp. Common Vulnerabilities and Exposures (CVE) number has not
been assigned yet.
VIII. DISCLOSURE TIMELINE
12/15/2009 Initial Vendor Notification
12/16/2009 Initial Vendor Reply
03/30/2010 Coordinated Public Disclosure
IX. CREDIT
This vulnerability was reported to iDefense by regenrecht.
Get paid for vulnerability research
http://labs.idefense.com/methodology/vulnerability/vcp.php
Free tools, research and upcoming events
http://labs.idefense.com/
X. LEGAL NOTICES
Copyright © 2010 iDefense, Inc.
Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDefense. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically,
please e-mail customerservice@idefense.com for permission.
Disclaimer: 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.
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
If you believe that your computer system has been compromised or attacked in
any way, we encourage you to let us know by completing the secure National IT
Incident Reporting Form at:
http://www.auscert.org.au/render.html?it=3192
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
iD8DBQFLsvgk/iFOrG6YcBERAtR3AKDNc+tky+hARiXf7yZQRcgjo/8q+gCfQQEt
+yUCssUIUn/NSKftwXNJdM8=
=BppP
-----END PGP SIGNATURE-----