Vulnerability Note VU#792881

Microsoft Java implementation JDBC functions do not properly validate parameters

Overview

The Java Database Connectivity (JDBC) classes of Microsoft's Java virtual machine (VM) contain functions that do not properly validate parameters. A malicious Java applet can exploit this vulnerability to crash programs on the client system.

I. Description

Microsoft's Java VM is installed on Windows 98, NT, 2000, and XP. It is used by Internet Explorer and Outlook Express to execute Java applets.

The VM includes classes that provide JDBC functionality to Java applets. Certain functions in these classes do not properly validate their parameters. By specifying invalid parameter handles, a malicious applet can cause programs running the VM (such as Internet Explorer) to crash. It may also be possible to execute arbitrary code on the client system, though this has not been demonstrated or proven.

II. Impact

A malicious applet can cause the VM and dependent programs such as Internet Explorer to crash.

III. Solution

Apply a patch

For more information, see:

http://www.microsoft.com/technet/security/bulletin/MS02-052.asp

Systems Affected

Vendor	Status	Date Notified	Date Updated
Microsoft Corporation	Vulnerable	26-Aug-2004

References

http://www.securityfocus.com/bid/5670
http://www.microsoft.com/technet/security/bulletin/MS02-052.asp

Credit

Thanks to Jouko Pynnonen for reporting this vulnerability.

This document was written by Shawn Van Ittersum.

Other Information

Date Public:	2002-09-09
Date First Published:	2002-10-11
Date Last Updated:	2004-08-26
CERT Advisory:
CVE-ID(s):	CAN-2002-0867
NVD-ID(s):	CAN-2002-0867
US-CERT Technical Alerts:
Metric:	11.34
Document Revision:	8

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