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Insecure Library Loading
Highly critical

Microsoft Excel Multiple Vulnerabilities

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Release Date:  2009-11-10    Last Update:  2009-11-11    Views:  5,865

Secunia Advisory SA37299

Where:

From remote

Impact:

System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


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

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

2) An unspecified error in the processing of certain record objects can be exploited to corrupt memory via a specially crafted Excel file.

3) An error in the parsing of Shared Feature Header records can be exploited to corrupt memory via a specially crafted Excel file.

4) An unspecified error in the processing of Binary File Format (BIFF) records can be exploited to cause a heap-based buffer overflow via a specially crafted Excel file.

5) An unspecified error in the handling of formulas embedded inside a cell can be exploited to corrupt memory via a specially crafted Excel file.

6) An unspecified error when loading Excel formulas can be exploited to corrupt a pointer when a specially crafted Excel file is being opened.

7) An unspecified error when loading Excel records can be exploited to corrupt memory via a specially crafted Excel file.

8) An unspecified error when processing Excel record objects can be exploited via a specially crafted Excel file.

Successful exploitation of these vulnerabilities allows execution of arbitrary code.


Solution:
Apply patches.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) An anonymous person via ZDI.
The vendor also credits Bing Liu, Fortinet's FortiGuard Labs.

2, 8) The vendor credits Bing Liu of Fortinet's FortiGuard Labs
3) An anonymous person via ZDI and Sean Larsson, iDefense Labs.
4-7) The vendor credits Nicolas Joly, Vupen Security.

Original Advisory:
MS09-067 (KB972652, KB973471, KB973475, KB973593, KB976830, KB976828, KB976831, KB973484, KB973707, KB973704):
http://www.microsoft.com/technet/security/Bulletin/MS09-067.mspx

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-09-082/
http://www.zerodayinitiative.com/advisories/ZDI-09-083/

iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=832

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 Excel Multiple Vulnerabilities

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