A new security update has been released for Gentoo Linux - Sun JDK/JRE: Execution of arbitrary code. Here the announcement:

Gentoo Linux Security Advisory GLSA 200702-07
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http://security.gentoo.org/
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Severity: Normal
Title: Sun JDK/JRE: Execution of arbitrary code
Date: February 17, 2007
Bugs: #162511
ID: 200702-07

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Synopsis
========

Sun Java Development Kit (JDK) and Java Runtime Environment (JRE)
contain a memory corruption flaw that allows the applets to gain
elevated privileges potentially leading to the execute of arbitrary
code.

Background
==========

The Sun Java Development Kit (JDK) and the Sun Java Runtime Environment
(JRE) provide the Sun Java platform.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-java/sun-jdk < 1.5.0.10 >= 1.5.0.10
*>= 1.4.2.13
dev-java/sun-jdk < 1.4.2.13 >= 1.5.0.10
*>= 1.4.2.13
2 dev-java/sun-jre-bin < 1.5.0.10 >= 1.5.0.10
*>= 1.4.2.13
dev-java/sun-jre-bin < 1.4.2.13 >= 1.5.0.10
*>= 1.4.2.13
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------

Description
===========

A anonymous researcher discovered that an error in the handling of a
GIF image with a zero width field block leads to a memory corruption
flaw.

Impact
======

An attacker could entice a user to run a specially crafted Java applet
or application that would load a crafted GIF image, which could result
in escalation of privileges and unauthorized access to system
resources.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Sun Java Development Kit 1.5 users should upgrade to the latest
version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-java/sun-jdk-1.5.0.10"

All Sun Java Development Kit 1.4 users should upgrade to the latest
version:

# emerge --sync
# emerge --ask --oneshot --verbose "=dev-java/sun-jdk-1.4.2*"

All Sun Java Runtime Environment 1.5 users should upgrade to the latest
version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-java/sun-jre-bin-1.5.0.10"

All Sun Java Runtime Environment 1.4 users should upgrade to the latest
version:

# emerge --sync
# emerge --ask --oneshot --verbose "=dev-java/sun-jre-bin-1.4.2*"

References
==========

[ 1 ] CVE-2007-0243
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-CVE-2007-0243

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200702-07.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5