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Vulnerability Note VU#388289

Sun Microsystems Java GIF image processing buffer overflow

Overview

A vulnerability in the Sun Java Runtime Environment may allow an 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 made the JRE available for multiple operating systems. When a GIF image with a specified width of 0 is processed, the Sun JRE will overwrite memory contents, which can cause pointer corruption.

Note that exploit code for this vulnerability is publicly available.

II. Impact

A remote unauthenticated attacker may be able to execute arbitrary code.

III. Solution

Apply an update

Per Sunsolve document 102760, this issue is addressed in

  • 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

Disable Java

Disable Java in your web browser, as specified in the Securing Your Web Browser document.

Systems Affected
VendorStatusDate NotifiedDate Updated
Apple Computer, Inc.Unknown18-Jan-2007
IBM eServerUnknown13-Feb-2007
Sun Microsystems, Inc.Vulnerable17-Jan-2007

References

http://www.cert.org/tech_tips/securing_browser/
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102760-1
http://www.zerodayinitiative.com/advisories/ZDI-07-005.html
http://secunia.com/advisories/23757/
http://www.securityfocus.com/bid/22085
http://securitytracker.com/alerts/2007/Jan/1017520.html
http://secunia.com/advisories/24189/
http://secunia.com/advisories/24202/
http://secunia.com/advisories/24468/
http://secunia.com/advisories/25283/

Credit

Thanks to ZDI for reporting this vulnerability, who in turn credit an anonymous researcher.

This document was written by Will Dormann.

Other Information

Date Public:2007-01-16
Date First Published:2007-01-17
Date Last Updated:2007-05-16
CERT Advisory: 
CVE-ID(s):CVE-2007-0243
NVD-ID(s):CVE-2007-0243
US-CERT Technical Alerts: 
Metric:31.47
Document Revision:23

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