IBMJava2-JRE and IBMJava2-SDK packages that correct several security issues are available for Red Hat Enterprise Linux 2.1.A flaw was found in the applet class loader. An untrusted applet could use this flaw to circumvent network access restrictions, possibly connecting to services hosted on the machine that executed the applet.

====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: IBMJava2 security update
Advisory ID:       RHSA-2008:0133-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2008:0133.html
Issue date:        2008-06-24
Keywords:          Security
CVE Names:         CVE-2007-3922 CVE-2007-3004 CVE-2007-3005 
====================================================================
1. Summary:

IBMJava2-JRE and IBMJava2-SDK packages that correct several security issues
are available for Red Hat Enterprise Linux 2.1.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1  - i386
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386

3. Description:

IBM's 1.3.1 Java release includes the IBM Java 2 Runtime Environment and
the IBM Java 2 Software Development Kit.

A buffer overflow was found in the Java Runtime Environment image-handling
code. An untrusted applet or application could use this flaw to elevate its
privileges and potentially execute arbitrary code as the user running the
java virtual machine. (CVE-2007-3004)

An unspecified vulnerability was discovered in the Java Runtime
Environment. An untrusted applet or application could cause the java
virtual machine to become unresponsive. (CVE-2007-3005)

A flaw was found in the applet class loader. An untrusted applet could use
this flaw to circumvent network access restrictions, possibly connecting to
services hosted on the machine that executed the applet. (CVE-2007-3922)

These updated packages also add the following enhancements:

* Time zone information has been updated to the latest available
information, 2007h.

* Accessibility support in AWT can now be disabled through a system
property, java.assistive.  To support this change,  permission to read this
property must be added to /opt/IBMJava2-131/jre/lib/security/java.policy.
Users of IBMJava2 who have modified this file should add this following
line to the grant section:

permission java.util.PropertyPermission "java.assistive", "read";

All users of IBMJava2 should upgrade to these updated packages, which
contain IBM's 1.3.1 SR11 Java release, which resolves these issues.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.  

This update is available via Red Hat Network.  Details on how to use 
the Red Hat Network to apply this update are available at

5. Bugs fixed (http://bugzilla.redhat.com/):

242595 - CVE-2007-3004 Integer overflow in IBM JDK's ICC profile parser
249533 - CVE-2007-3922 Vulnerability in the Java Runtime Environment May Allow an Untrusted Applet to Circumvent Network Access Restrictions
250733 - CVE-2007-3005 Unspecified vulnerability in Sun JRE

6. Package List:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 :

Source:

i386:
IBMJava2-JRE-1.3.1-17.i386.rpm
IBMJava2-SDK-1.3.1-17.i386.rpm

Red Hat Enterprise Linux ES version 2.1:

Source:

i386:
IBMJava2-JRE-1.3.1-17.i386.rpm
IBMJava2-SDK-1.3.1-17.i386.rpm

Red Hat Enterprise Linux WS version 2.1:

Source:

i386:
IBMJava2-JRE-1.3.1-17.i386.rpm
IBMJava2-SDK-1.3.1-17.i386.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://access.redhat.com/security/team/key#package

7. References:

https://www.cve.org/CVERecord?id=CVE-2007-3922
https://www.cve.org/CVERecord?id=CVE-2007-3004
https://www.cve.org/CVERecord?id=CVE-2007-3005
https://www.ibm.com/us-en 
https://access.redhat.com/security/updates/classification#moderate

8. Contact:

The Red Hat security contact is .  More contact
details at https://access.redhat.com/security/team/contact

Copyright 2008 Red Hat, Inc.