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Highly critical

Microsoft Office Excel Multiple Vulnerabilities

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Release Date:  2010-03-09    Last Update:  2010-03-10    Views:  11,351

Secunia Advisory SA38805

Where:

From remote

Impact:

System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Multiple vulnerabilities have been reported in Microsoft Office Excel, which can be exploited by malicious people to compromise a user's system.

1) An error in the parsing of records can be exploited to corrupt memory via a specially crafted file.

2) An error in the parsing of sheet object types can be exploited to corrupt memory via a specially crafted file.

3) An error in the parsing of MDXTUPLE records can be exploited to cause a heap-based buffer overflow via a specially crafted file.

4) An error in the parsing of MDXSET records can be exploited to cause a heap-based buffer overflow via a specially crafted file.

5) An error in the parsing of FNGROUPNAME records may result in the use of uninitialised memory via a specially crafted file.

6) An error in the parsing of a ZIP header within XLSX files when decompressing certain XML elements may result in use of uninitialised memory.

7) An error in the parsing of DbOrParamQry records can be exploited to corrupt memory via a specially crafted file.

Successful exploitation of the vulnerabilities may allow execution of arbitrary code.


Solution:
Apply patches.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) The vendor credits Nicolas Joly, Vupen.
2-5) Sean Larsson, VeriSign iDefense Labs.
6) An anonymous person via ZDI.
7) The vendor credits Damián Frizza, Core Security Technologies.

Original Advisory:
MS10-017 (KB980150, KB978471, KB978474, KB978382, KB980837, KB980839, KB980840, KB978383, KB978380, KB979439):
http://www.microsoft.com/technet/security/bulletin/ms10-017.mspx

iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=859
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=860
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=861
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=862

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-10-025/

Core Security:
http://www.coresecurity.com/content/CORE-2009-1103

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Microsoft Office Excel Multiple Vulnerabilities

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