SECUNIA ADVISORY ID: SA25619

VERIFY ADVISORY: http://secunia.com/advisories/25619/

CRITICAL: Highly critical

IMPACT: System access

WHERE: >From remote

SOFTWARE:
Microsoft Office 2003 Student and Teacher Edition - http://secunia.com/product/2278/
Microsoft Office 2003 Standard Edition - http://secunia.com/product/2275/
Microsoft Office 2003 Small Business Edition - http://secunia.com/product/2277/
Microsoft Office 2003 Professional Edition - http://secunia.com/product/2276/
Microsoft Visio 2003 - http://secunia.com/product/1092/
Microsoft Visio 2002 - http://secunia.com/product/1091/

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

1) An input validation error in the handling of the version number field in a Visio (.VSD, VSS, or .VST) file can be exploited to corrupt memory via a specially crafted Visio file.

2) An error in the handling of packed objects in a Visio file can be exploited to corrupt memory via a specially crafted Visio file.

Successful exploitation of the vulnerabilities allows execution of arbitrary code.

SOLUTION: Apply patches.
Microsoft Visio 2002 SP2: http://www.microsoft.com/downloads/details/aspx?FamilyId=FC1D0483-27E8-4541-B81D-4A47973BEA30
Microsoft Visio 2003 SP2: http://www.microsoft.com/downloads/details.aspx?FamilyId=C47F432E-8538-42FD-92C9-7E0F1D643E8E

PROVIDED AND/OR DISCOVERED BY:
1) Reported the vendor.
2) The vendor credits Chris Ries, Vigilant Minds.

ORIGINAL ADVISORY: MS07-030 (KB927051): http://www.microsoft.com/technet/security/Bulletin/MS07-030.mspx