Sun Java JRE GIF Image Processing Buffer Overflow Vulnerability

mailman · 2007/01/17

Source: http://secunia.com/advisories/23757/

Description:
A vulnerability has been reported in Sun Java Runtime Environment (JRE), which can be exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to an error when processing GIF images and can be exploited to cause a heap-based buffer overflow via a specially crafted GIF image with an image width of 0.

Successful exploitation allows execution of arbitrary code.

The vulnerability is reported in the following versions:

JDK and JRE 5.0 Update 9 and prior.

SDK and JRE 1.4.2_12 and prior.

SDK and JRE 1.3.1_18 and prior.

Solution:
Updated to fixed versions.

JDK and JRE 5.0:
Update to JDK and JRE 5.0 Update 10 or later.
http://java.sun.com/javase/downloads/index_jdk5.jsp

SDK and JRE 1.4.x:
Update to SDK and JRE 1.4.2_13 or later.
http://java.sun.com/j2se/1.4.2/download.html

SDK and JRE 1.3.x:
Update to SDK and JRE 1.3.1_19 or later.
http://java.sun.com/j2se/1.3/download.html
Click to expand...

mailman · 2007/01/22

US-CERT Technical Cyber Security Alert TA07-022A

This is an e-mail I received today that provides details from the United States Computer Emergency Readiness Team (US-CERT) [http://www.us-cert.gov/] about the Java Runtime Environment vulnerability (bold emphasis added by me).

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

National Cyber Alert System

Technical Cyber Security Alert TA07-022A

Sun Updates for Multiple Vulnerabilities in Java

Original release date: January 22, 2007
Last revised: --
Source: US-CERT

Systems Affected

Sun Java Runtime Environment versions

* JDK and JRE 5.0 Update 9 and earlier
* SDK and JRE 1.4.2_12 and earlier
* SDK and JRE 1.3.1_18 and earlier

Overview

The Sun Java Runtime Environment contains multiple vulnerabilities
that can allow a remote, unauthenticated attacker to execute arbitrary
code on a vulnerable system.

I. Description

The Sun Java Runtime Environment (JRE) allows users to run Java
applications in a browser or as standalone programs. Sun has released
updates to the Java Runtime Environment software to address multiple
vulnerabilities. Further details about these vulnerabilities are
available in the Vulnerability Notes Database.

Note that exploit code is publicly available for at least one of these
vulnerabilities.

II. Impact

By convincing a user to run a specially crafted Java application, a
remote, unauthenticated attacker can execute arbitrary code on a
vulnerable system. A common attack vector would be a web page that
contains a Java applet.

III. Solution

Apply an update from Sun

These issues are addressed in the following versions of the Sun Java
Runtime environment:

* JDK and JRE 5.0 Update 10 or later
* SDK and JRE 1.4.2_13 or later
* SDK and JRE 1.3.1_19 or later

If you install the latest version of Java, older versions of Java may
remain installed on your computer. If these versions of Java are not
needed, you may wish to remove them. For instructions on how to remove
older versions of Java, refer to the following instructions from Sun:

http://www.java.com/en/download/faq/5000070400.xml

Disable Java

Disable Java in your web browser, as specified in the Securing Your
Web Browser document. While this does not fix the underlying
vulnerabilities, it does block the most common attack vector.

IV. References

* US-CERT Vulnerability Note VU#388289 -
<http://www.kb.cert.org/vuls/id/388289>

* US-CERT Vulnerability Note VU#102289 -
<http://www.kb.cert.org/vuls/id/102289>

* US-CERT Vulnerability Note VU#149457 -
<http://www.kb.cert.org/vuls/id/149457>

* US-CERT Vulnerability Note VU#939609 -
<http://www.kb.cert.org/vuls/id/939609>

* Securing Your Web Browser -
<http://www.us-cert.gov/reading_room/securing_browser/>

* CVE-2007-0243 -
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0243>

* CVE-2006-6745 -
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6745>

* CVE-2006-6731 -
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6731>

* Java SE Technologies at a Glance -
<http://java.sun.com/javase/technologies/>

* Java SE Security -
<http://java.sun.com/javase/technologies/security/index.jsp>

* Can I remove older versions of the JRE after installing a newer
version? - <http://www.java.com/en/download/faq/5000070400.xml>

____________________________________________________________________

The most recent version of this document can be found at:

<http://www.us-cert.gov/cas/techalerts/TA07-022A.html>
____________________________________________________________________

Feedback can be directed to US-CERT Technical Staff. Please send
email to <cert@cert.org> with "TA07-022A Feedback VU#388289" in the
subject.
____________________________________________________________________

For instructions on subscribing to or unsubscribing from this
mailing list, visit <http://www.us-cert.gov/cas/signup.html>.
____________________________________________________________________

Produced 2007 by US-CERT, a government organization.

Terms of use:

<http://www.us-cert.gov/legal.html>
____________________________________________________________________

Revision History

January 22, 2007: Initial release
Click to expand...

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Sun Java JRE GIF Image Processing Buffer Overflow Vulnerability

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