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Extremely critical

Microsoft Excel Two Vulnerabilities

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Description


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

1) An error may cause an invalid object to be referenced when opening an Excel document and can be exploited via a specially crafted Excel spreadsheet file.

NOTE: According to Microsoft, the vulnerability is currently being actively exploited.

2) An error when processing an unspecified 16-bit value extracted from an Excel document can be exploited to corrupt memory.

Successful exploitation may allow execution of arbitrary code.


Solution:
Apply patches.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) Reported as a 0-day.
2) Haifei Li, Fortinet FortiGuard Global Security Research Team

Original Advisory:
MS09-009 (KB968557, KB959964, KB959988, KB959995, KB959997, KB959993, KB960000, KB960003):
http://www.microsoft.com/technet/security/Bulletin/MS09-009.mspx

Microsoft:
http://www.microsoft.com/technet/security/advisory/968272.mspx

FortiGuard:
http://www.fortiguardcenter.com/advisory/FGA-2009-16.html

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 Two Vulnerabilities

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