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AUSCERT External Security Bulletin Redistribution
Vulnerability in Microsoft Office (MSO) Could Allow Remote Code Execution
10 February 2010
AusCERT Security Bulletin Summary
Product: Microsoft Office XP
Microsoft Office 2004 for Mac
Operating System: Windows
Mac OS X
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
CVE Names: CVE-2010-0243
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Microsoft Security Bulletin MS10-003 - Important
Vulnerability in Microsoft Office (MSO) Could Allow Remote Code
Published: February 09, 2010
This security update resolves a privately reported vulnerability in
Microsoft Office that could allow remote code execution if a user
opens a specially crafted Office file. An attacker who successfully
exploited this vulnerability could take complete control of an affected
system. An attacker could then install programs; view, change, or delete
data; or create new accounts with full user rights. Users whose accounts
are configured to have fewer user rights on the system could be less
impacted than users who operate with administrative user rights.
This security update is rated Important for all supported editions of
Microsoft Office XP and Microsoft Office 2004 for Mac.
The update addresses the vulnerability by modifying the way that
Microsoft Office opens files.
Recommendation. Microsoft recommends that customers apply the update
at the earliest opportunity.
Known Issues. None
Microsoft Office XP Service Pack 3
Microsoft Office 2004 for Mac
MSO.DLL Buffer Overflow - CVE-2010-0243
A remote code execution vulnerability exists in the way Microsoft
Office handles specially crafted Office files. An attacker who
successfully exploited this vulnerability could take complete control
of an affected system. An attacker could then install programs; view,
change, or delete data; or create new accounts with full user rights.
Users whose accounts are configured to have fewer user rights on the
system could be less impacted than users who operate with administrative
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