Microsoft Windows fails to properly create entries in the Local Descriptor Table (LDT)

Overview

Microsoft Windows NT4.0 and Windows 2000 contain a vulnerability that could permit a local user to gain elevated privileges on the system.

Description

Microsoft Windows NT4.0 and Windows 2000 provide an API to the kernel to create Local Descriptor Tables (LDT) for applications. A failure to filter content in the programming interface could permit an attacker to access and modify protected memory space. This could result in the attacker gaining elevated privileges. The vulnerable function in the API is NtSetLdtEntries. For more details, please see Microsoft Security Bulletin MS04-011 and eEye Digital Security Advisory [AD20040413D].

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Impact

A local user may be able to gain elevated privileges on the system.

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Solution

Apply a patch from the vendor

Microsoft Security Bulletin MS04-011 contains patch information to resolve this issue.

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Vendor Information

122076

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Updated: April 14, 2004

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

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

Addendum

Microsoft Security Bulletin MS04-011 contains information regarding this issue.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23122076 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.microsoft.com/technet/security/bulletin/ms04-011.mspx&gt;
• <http://www.eeye.com/html/Research/Advisories/AD20040413D.html&gt;

Acknowledgements

Thanks to Microsoft and eEye Digital Security for reporting this vulnerability.

This document was written by Jason A Rafail.

Other Information

CVE IDs:	CVE-2003-0910
Severity Metric:	9.06 Date Public: