Date: 15 April 2009
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A U S C E R T A L E R T
AL-2009.0028 -- AUSCERT ALERT
[Win]
Wordpad and Office Text Converters: Execute Arbitrary Code
15 April 2009
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AusCERT Alert Summary
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Product: Microsoft Windows 2000 Service Pack 4
Windows XP Service Pack 2
Windows XP Service Pack 3
Windows XP Professional x64 Edition
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 1
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP1 for Itanium-based
Systems
Windows Server 2003 with SP2 for Itanium-based
Systems
Microsoft Office 2000 Service Pack 3
Microsoft Office XP Service Pack 3
Microsoft Office Converter Pack
Publisher: Microsoft
Operating System: Windows
Impact: Execute Arbitrary Code/Commands
Access: Remote/Unauthenticated
CVE Names: CVE-2009-0235 CVE-2009-0088 CVE-2009-0087
CVE-2008-4841
Original Bulletin:
http://www.microsoft.com/technet/security/bulletin/MS09-010.mspx
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Microsoft Security Bulletin MS09-010 - Critical
Vulnerabilities in WordPad and Office Text Converters Could Allow Remote
Code Execution (960477)
Published: April 14, 2009
Version: 1.0
General Information
Executive Summary
This security update resolves two publicly disclosed vulnerabilities and
two privately reported vulnerabilities in Microsoft WordPad and Microsoft
Office text converters. The vulnerabilities could allow remote code
execution if a specially crafted file is opened in WordPad or Microsoft
Office Word. Do not open Microsoft Office, RTF, Write, or WordPerfect
files from untrusted sources using affected versions of WordPad or
Microsoft Office Word.
This security update is rated Critical for supported editions of Microsoft
Office Word 2000. This security update is also rated Important for
supported editions of Microsoft Office Word 2002; Microsoft Office
Converter Pack; and WordPad on all supported editions of Microsoft Windows
2000, Windows XP, and Windows Server 2003. For more information, see the
subsection, Affected and Non-Affected Software, in this section.
This security update addresses the vulnerabilities by modifying the way
that Microsoft Office Word and Office text converters handle opening
specially crafted Word 6.0, Windows Write, and WordPerfect documents. This
security update also addresses the vulnerabilities by implementing fixes
to WordPad and by preventing WordPad on affected platforms from opening
Word 6.0 and Windows Write files. For more information about the
vulnerabilities, see the Frequently Asked Questions (FAQ) subsection for
the specific vulnerability entry under the next section, Vulnerability
Information.
Recommendation. Microsoft recommends that customers apply the update
immediately.
Affected Software
Microsoft Windows 2000 Service Pack 4
Windows XP Service Pack 2 and Windows XP Service Pack 3
Windows XP Professional x64 Edition and Windows XP Professional x64
Edition Service Pack 2
Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition
Service Pack 2
Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server
2003 with SP2 for Itanium-based Systems
Microsoft Office 2000 Service Pack 3
Microsoft Office XP Service Pack 3
Microsoft Office Converter Pack
Vulnerability Information
WordPad and Office Text Converter Memory Corruption Vulnerability -
CVE-2009-0087
A remote code execution vulnerability exists in the way that text converters
in WordPad and Microsoft Office process memory when a user opens a specially
crafted Word 6 file that includes malformed data.
WordPad Word 97 Text Converter Stack Overflow Vulnerability - CVE-2008-4841
A remote code execution vulnerability exists in the way that Microsoft
WordPad processes memory when parsing a specially crafted Word 97 document.
The vulnerability could allow remote code execution if a user opens a
specially crafted Word file that includes a malformed list structure.
Word 2000 WordPerfect 6.x Converter Stack Corruption Vulnerability -
CVE-2009-0088
A remote code execution vulnerability exists in the way that the WordPerfect
6.x converter that is included with Microsoft Office Word 2000 processes
memory when parsing a specially crafted WordPerfect document.
WordPad Word 97 Text Converter Stack Overflow Vulnerability - CVE-2009-0235
A remote code execution vulnerability exists in WordPad as a result of
memory corruption when a user opens a specially crafted Word file.
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