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Category:   Application (Generic)  >   Oracle Java SE Vendors:   Sun
Java Runtime Environment Font Parsing Bug Lets Remote Applets Gain Elevated Privileges
SecurityTracker Alert ID:  1018576
SecurityTracker URL:  http://securitytracker.com/id/1018576
CVE Reference:   CVE-2007-4381   (Links to External Site)
Updated:  Oct 16 2007
Original Entry Date:  Aug 16 2007
Impact:   Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5.0 Update 9 and prior versions
Description:   A vulnerability was reported in Java Runtime Environment (JRE). A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted Java applet that, when loaded by the target user, will trigger an error in the font parsing code and run with elevated privileges. The applet can read and write files on the target user's system or execute applications on the target user's system with the privileges of the target user.

John Heasman of NGSSoftware reported this vulnerability.

Impact:   A remote user can create Java that, when loaded by the target user, will read or write files and execute code on the target user's system.
Solution:   The vendor has issued the following fixes.

This issue is addressed in the following releases (for Solaris, Linux, and Windows):

* JDK and JRE 5.0 Update 10 or later
* SDK and JRE 1.4.2_15 or later

J2SE 5.0 is available for download at the following link:

* http://java.sun.com/j2se/1.5.0/download.jsp

The latest J2SE 5.0 Update Release for Solaris is also available in the following patches:

* J2SE 5.0: update 12 (as delivered in patch 118666-12)
* J2SE 5.0: update 12 (as delivered in patch 118667-12 (64bit))
* J2SE 5.0_x86: update 12 (as delivered in patch 118668-12)
* J2SE 5.0_x86: update 12 (as delivered in patch 118669-12 (64bit))

J2SE 1.4.2 is available for download at:

* http://java.sun.com/j2se/1.4.2/download.html

The Sun advisory is available at:

http://sunsolve.sun.com/search/document.do?assetkey=1-26-103024-1

Vendor URL:  sunsolve.sun.com/search/document.do?assetkey=1-26-103024-1 (Links to External Site)
Cause:   Not specified
Underlying OS:  Linux (Any), UNIX (Solaris - SunOS), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Oct 16 2007 (Red Hat Issues Fix) Java Runtime Environment Font Parsing Bug Lets Remote Applets Gain Elevated Privileges
Red Hat has released a fix for java-1.5.0-bea for Red Hat Enterprise Linux Extras.
Dec 12 2007 (Red Hat Issues Fix) Java Runtime Environment Font Parsing Bug Lets Remote Applets Gain Elevated Privileges
Red Hat has released a fix for Red Hat Enterprise Linux Extras 4.
Feb 14 2008 (Red Hat Issues Fix) Java Runtime Environment Font Parsing Bug Lets Remote Applets Gain Elevated Privileges
Red Hat has released a fix for Red Hat Enterprise Linux Extras.
Mar 12 2008 (Red Hat Issues Fix) Java Runtime Environment Font Parsing Bug Lets Remote Applets Gain Elevated Privileges
Red Hat has released a fix for java-1.4.2-bea on Red Hat Enterprise Linux Extras 3, 4, and 5.



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