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TUCoPS :: Oracle :: bx6031.htm

Oracle Java Runtime Environment Image FIle Buffer Overflow Vulnerability
iDefense Security Advisory 03.30.10: Oracle Java Runtime Environment Image FIle Buffer Overflow Vulnerability
iDefense Security Advisory 03.30.10: Oracle Java Runtime Environment Image FIle Buffer Overflow Vulnerability

iDefense Security Advisory 03.30.10 
Mar 30, 2010


The Java Runtime Environment (JRE) is the Sun Microsystems
implementation of the Java run-time. For more information, visit the
link shown below. 


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.


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.


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.


iDefense is currently unaware of any workarounds for this issue.


Oracle Corp. has released a patch which addresses this issue. For more
information, consult their advisory at the following URL. 


A Mitre Corp. Common Vulnerabilities and Exposures (CVE) number has not
been assigned yet.


12/15/2009  Initial Vendor Notification
12/16/2009  Initial Vendor Reply
03/30/2010  Coordinated Public Disclosure


This vulnerability was reported to iDefense by regenrecht.

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Disclaimer: The information in the advisory is believed to be accurate
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