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Category:   Application (Generic)  >   Microsoft Excel Vendors:   Microsoft
Microsoft Excel Buffer Overflows in Processing Various Records and Strings Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1017487
SecurityTracker URL:
CVE Reference:   CVE-2007-0027, CVE-2007-0029, CVE-2007-0030, CVE-2007-0031   (Links to External Site)
Updated:  Jan 18 2007
Original Entry Date:  Jan 9 2007
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2000, 2002, 2003, 2004 for Mac, v. X for Mac
Description:   Several vulnerabilities were reported in Microsoft Excel. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted Excel file that, when loaded by the target user, will trigger a buffer overflow and execute arbitrary code on the target system. The code will run with the privileges of the target user.

A specially crafted IMDATA record, PALETTE record, column record, or other record or string can trigger the vulnerabilities.

Microsoft Office Excel 2007 and Microsoft Works Suite 2006 are not affected.

Microsoft credits Jeff Gennari of CERT, Jie Ma of Fortinet Security Research Team, NSFocus Security Team, and Greg MacManus of iDefense Labs with reporting these vulnerabilities.

Impact:   A remote user can create a file that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued the following fixes:

Microsoft Excel 2000:

Microsoft Excel 2002:

Microsoft Excel 2003:

Microsoft Office Excel Viewer 2003:

Microsoft Works Suite 2004:

Microsoft Works Suite 2005:

Microsoft Office 2004 for Mac:

Microsoft Office v. X for Mac:

On January 18, 2007, Microsoft re-released the fix for Excel 2000 only. Excel 2000 users should reapply the update. The original fix for Excel 2000 contained the proper security fix, but may have prevented files created in Korean, Chinese, or Japanese from opening. The Microsoft blog entry regarding the re-release of the fix for Excel 2000 is available at:

The Microsoft advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Boundary error, Input validation error
Underlying OS:  UNIX (macOS/OS X), Windows (2000), Windows (2003), Windows (XP)

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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