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Microsoft Word Multiple Memory Corruption Vulnerabilities Advisory Available in Danish  Advisory Available in German 

Secunia Advisory: SA23232  
Release Date: 2006-12-06
Last Update: 2007-02-13

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

Software: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 XP
Microsoft Word 2000
Microsoft Word 2002
Microsoft Word 2003
Microsoft Word Viewer 2003
Microsoft Works Suite 2004
Microsoft Works Suite 2005
Microsoft Works Suite 2006

CVE reference:CVE-2006-5994 (Secunia mirror)
CVE-2006-6561 (Secunia mirror)
CVE-2007-0208 (Secunia mirror)
CVE-2007-0209 (Secunia mirror)

Want to know the next time vulnerabilities are fixed in this product?
- Companies can be alerted via email and SMS!


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

1) An unspecified error in the handling of certain strings in Word documents can be exploited to cause a memory corruption via a specially crafted string.

NOTE: According to Microsoft, this vulnerability is already being actively exploited on a limited scale.

2) An error within the processing of counts in Word documents can be exploited to somewhat control the destination address of a memmove() call by manipulating a certain DWORD in the document used for calculating the destination address.

3) An error within the handling of macros in Word documents can be exploited to automatically execute a macro by manipulating certain properties in a Word document.

4) An error within the processing of drawing objects can be exploited to cause a memory corruption via a Word document containing a specially crafted drawing object.

Successful exploitation of the vulnerabilities allows execution of arbitrary code.

Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, scan using the Network Software Inspector.

Solution:
Apply patches.

Microsoft Word 2000 (with Office 2000 SP3):
http://www.microsoft.com/downloads/de...=F1E61E6A-BE3D-4536-AF76-A11D5CE67199

Microsoft Word 2002 (with Office XP SP3):
http://www.microsoft.com/downloads/de...=A1CA8DD7-0622-4D66-A85F-A6586545EF9D

Microsoft Word 2003 (with Office 2003 SP2):
http://www.microsoft.com/downloads/de...=882F8503-DA72-43C9-B556-A002EC58F289

Microsoft Word Viewer 2003:
http://www.microsoft.com/downloads/de...=FB59798B-AFE2-4103-9991-CBDD7686F9AD

Microsoft Works Suite 2004:
http://www.microsoft.com/downloads/de...=A1CA8DD7-0622-4D66-A85F-A6586545EF9D

Microsoft Works Suite 2005:
http://www.microsoft.com/downloads/de...=A1CA8DD7-0622-4D66-A85F-A6586545EF9D

Microsoft Works Suite 2006:
http://www.microsoft.com/downloads/de...=A1CA8DD7-0622-4D66-A85F-A6586545EF9D

Microsoft Office 2004 for Mac:
http://www.microsoft.com/mac/

Provided and/or discovered by:
1) Discovered as a 0-day.
2) disco
3) The vendor credits USAA.
4) Reported by the vendor.

Changelog:
2006-12-14: Added information about PoC possibly being available for this vulnerability.
2006-12-15: Added link to US-CERT.
2006-12-17: Divided advisory into two separate vulnerabilities.
2007-02-13: Added additional information from Microsoft. Updated "Solution" section.

Original Advisory:
MS07-014 (KB929434):
http://www.microsoft.com/technet/security/Bulletin/MS07-014.mspx

Microsoft:
http://www.microsoft.com/technet/security/advisory/929433.mspx
http://blogs.technet.com/msrc/archive...-security-advisory-929433-posted.aspx
http://blogs.technet.com/msrc/archive...rrent-word-vulnerability-reports.aspx

milw0rm:
http://milw0rm.com/exploits/2922

Other References:
US-CERT VU#167928:
http://www.kb.cert.org/vuls/id/167928

US-CERT VU#996892:
http://www.kb.cert.org/vuls/id/996892



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

69 Related Secunia Security Advisories, displaying 10

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5. Microsoft Office Object Parsing Memory Corruption Vulnerability
6. Microsoft Office Publisher File Parsing Vulnerabilities
7. Microsoft Works File Converter File Parsing Vulnerabilities
8. Microsoft Windows OLE Automation Memory Corruption
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10. Microsoft Excel Multiple Code Execution Vulnerabilities

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