BugTraq
ZDI-08-048: Microsoft Excel COUNTRY Record Memory Corruption Vulnerability Aug 12 2008 09:42PM
zdi-disclosures 3com com
ZDI-08-048: Microsoft Excel COUNTRY Record Memory Corruption Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-08-048

August 12, 2008

-- CVE ID:

CVE-2008-3006

-- Affected Vendors:

Microsoft

-- Affected Products:

Microsoft Office Excel

-- TippingPoint(TM) IPS Customer Protection:

TippingPoint IPS customers have been protected against this

vulnerability by Digital Vaccine protection filter ID 6296.

For further product information on the TippingPoint IPS, visit:

http://www.tippingpoint.com

-- Vulnerability Details:

This vulnerability allows remote attackers to execute arbitrary code on

vulnerable installations of Microsoft Office Excel. Exploitation

requires that the attacker coerce the target into opening a malicious

.XLS file.

The specific flaw exists within the parsing of the BIFF file format used

by Microsoft Excel. During the processing of a malformed Country (0x8c)

record, user-supplied data may be used in a memory copy operation

resulting in memory corruption. If successfully exploited remote

control of the affected system can be obtained under the credentials of

the currently logged in user.

-- Vendor Response:

Microsoft has issued an update to correct this vulnerability. More

details can be found at:

http://www.microsoft.com/technet/security/bulletin/MS08-043.mspx

-- Disclosure Timeline:

2008-04-16 - Vulnerability reported to vendor

2008-08-12 - Coordinated public release of advisory

-- Credit:

This vulnerability was discovered by:

* Anonymous

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