Microsoft Excel malformed record memory corruption vulnerability

Overview

Microsoft Excel contains a memory corruption vulnerability. This vulnerability may allow a remote attacker to execute arbitrary code on a vulnerable system.

Description

Microsoft Excel fails to properly validate records in data files. When a file with a malformed record is opened in Excel, system memory can be corrupted in a way that may allow an attacker to execute arbitrary code.

More information is available in MS06-012.

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Impact

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

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Solution

Apply a patch from your vendor
Microsoft addresses this vulnerability with the updates listed in Microsoft Security Bulletin MS06-012.

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Do not access Excel files from untrusted sources

By only accessing Excel files, such as spreadsheets, from trusted or known sources, the chances of exploitation are reduced.

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Vendor Information

104302

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Updated: March 14, 2006

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

Please see <http://www.microsoft.com/technet/security/Bulletin/MS06-012.mspx&gt;.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23104302 Feedback>).

CVSS Metrics

Group	Score	Vector
Base	0	AV:–/AC:–/Au:–/C:–/I:–/A:–
Temporal	0	E:ND/RL:ND/RC:ND
Environmental	0	CDP:ND/TD:ND/CR:ND/IR:ND/AR:ND

References

<http://www.microsoft.com/technet/security/Bulletin/MS06-012.mspx&gt;

Acknowledgements

This issue was reported in Microsoft Security Bulletin MS06-012. Microsoft credits Eyas of the XFOCUS Security Team with providing information regarding these issues.

This document was written by Jeff Gennari.

Other Information

CVE IDs:	CVE-2006-0031
Severity Metric:	20.25 Date Public: