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Microsoft Office String and Property Parsing Vulnerabilities
Secunia Advisory: SA21012
Release Date: 2006-07-11
Last Update: 2006-07-12
Popularity: 11,690 views

Critical:
Highly critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:Microsoft Access 2000
Microsoft Access 2002
Microsoft Access 2003
Microsoft Excel 2000
Microsoft Excel 2002
Microsoft Excel 2003
Microsoft Frontpage 2000
Microsoft Frontpage 2002
Microsoft Frontpage 2003
Microsoft InfoPath 2003
Microsoft Office 2000
Microsoft Office 2003 Professional Edition
Microsoft Office 2003 Small Business Edition
Microsoft Office 2003 Standard Edition
Microsoft Office 2003 Student and Teacher Edition
Microsoft Office 2004 for Mac
Microsoft Office Excel Viewer 2003
Microsoft Office Project 2002
Microsoft Office X for Mac
Microsoft Office XP
Microsoft OneNote 2003
Microsoft Outlook 2000
Microsoft Outlook 2002
Microsoft Outlook 2003
Microsoft PowerPoint 2000
Microsoft PowerPoint 2002
Microsoft Project 2000
Microsoft Project 2003
Microsoft Publisher 2000
Microsoft Publisher 2002
Microsoft Publisher 2003
Microsoft Visio 2002
Microsoft Visio 2003
Microsoft Word 2000
Microsoft Word 2002
Microsoft Word 2003
Microsoft Word Viewer 2003

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CVE reference:CVE-2006-1316
CVE-2006-1540
CVE-2006-2389


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

1) An error within the string parsing can be exploited to cause a buffer overflow when a malicious Office document containing a malformed string is opened.

2) An integer underflow error in MSO.DLL within the parsing of "Sheet Name" strings can be exploited to cause a buffer overflow when a malicious Office document is opened.

3) An error within the property handling can be exploited to cause a buffer overflow when a malicious Office document containing a malformed property is opened.

Successful exploitation of the vulnerabilities allows execution of arbitrary code.

Solution:
Apply patches.

Microsoft Office 2003 SP1 / SP2:
http://www.microsoft.com/downloads/de...=1B11AC6B-4A78-4A7B-995F-94738CAFE27F

Microsoft Office XP SP3:
http://www.microsoft.com/downloads/de...=266C287E-A773-4D9C-9736-EEAFB34FF893

Microsoft Office 2000 SP3:
http://www.microsoft.com/downloads/de...=776FF379-0B9D-45D5-8B3C-CF9A4BD25DAE

Microsoft Project 2002 SP2:
http://www.microsoft.com/downloads/de...=BF9CBFA6-5E91-4AA8-82C1-4C9A92A5B954

Microsoft Visio 2002 SP2:
http://www.microsoft.com/downloads/de...=9F67D75A-B69D-4064-942C-F5515C920E6B

Microsoft Project 2000 SR1:
http://www.microsoft.com/downloads/de...=5C28E38A-F323-4006-BEED-A00840CAFBCE

Provided and/or discovered by:
1) Reported by the vendor.
2) posidron (also reported by Elia Florio, Symantec).
3) Reported by the vendor.

Changelog:
2006-07-12: Added links to US-CERT vulnerability notes. Added additional information.

Original Advisory:
MS06-038 (KB917284):
http://www.microsoft.com/technet/security/Bulletin/MS06-038.mspx

Symantec:
http://www.symantec.com/enterprise/research/SYMSA-2006-007.txt

Other References:
US-CERT VU#409316:
http://www.kb.cert.org/vuls/id/409316

US-CERT VU#580036:
http://www.kb.cert.org/vuls/id/580036

US-CERT VU#609868:
http://www.kb.cert.org/vuls/id/609868


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