Microsoft Internet Explorer contains buffer overflow in Type attribute of OBJECT element on double-byte character set systems

Overview

Certain versions of Microsoft Internet Explorer (IE) that support double-byte character sets (DBCS) contain a buffer overflow vulnerability in the Type attribute of the OBJECT element. A remote attacker could execute arbitrary code with the privileges of the user running IE.

Description

Microsoft Security Bulletin MS03-032 and SNS Advisory No.68 describe a buffer overflow vulnerability in the Type attribute of the OBJECT element. This vulnerability only affects double-byte character set versions of IE (e.g. Japanese) and may be related to VU#679556/CAN-2003-0344/MS030-020.

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Impact

By convincing a victim to view an HTML document (web site, HTML email message), a remote attacker could execute arbitrary code with the privileges of the victim.

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Solution

Apply patch

Apply 822925 or a more recent cumulative patch for IE. See Microsoft Security Bulletin MS03-032.

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Vendor Information

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Microsoft Corporation __ Affected

Notified: August 25, 2003 Updated: August 25, 2003

Status

Affected

Vendor Statement

Please see Microsoft Security Bulletin MS03-032.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23334928 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.lac.co.jp/security/english/snsadv_e/68_e.html&gt;
• <http://www.microsoft.com/technet/security/bulletin/MS03-032.asp&gt;
• <http://msdn.microsoft.com/workshop/author/dhtml/reference/objects/object.asp&gt;
• <http://xforce.iss.net/xforce/xfdb/12970&gt;
• <http://www.securityfocus.com/bid/7806&gt;

Acknowledgements

Microsoft credits LAC/SNS for reporting this vulnerability. Information used in this document came from LAC/SNS and Microsoft.

This document was written by Art Manion.

Other Information

CVE IDs:	CVE-2003-0701
CERT Advisory:	CA-2003-22 Severity Metric: