April 12, 2005
Microsoft Word is affected by a buffer overflow vulnerability. This issue is due to a failure in the application to do proper bounds checking on user-supplied data. Microsoft has not specified exactly where the error may occur. This could result in execution of arbitrary code in the context of a user who opens the malicious document.
Internet Explorer is a likely attack vector as Word may be opened to handle the document when the user clicks a link.
- Microsoft Word 2000
- Microsoft Word 2000 Chinese Version
- Microsoft Word 2000 Japanese Version
- Microsoft Word 2000 Korean Version
- Microsoft Word 2000 SP2
- Microsoft Word 2000 SP3
- Microsoft Word 2000 SR1
- Microsoft Word 2000 SR1a
- Microsoft Word 2002
- Microsoft Word 2002 SP1
- Microsoft Word 2002 SP2
- Microsoft Word 2002 SP3
- Microsoft Word 2003
- Microsoft Word 2003 Viewer
- Microsoft Works Suite 2001
- Microsoft Works Suite 2002
- Microsoft Works Suite 2003
- Microsoft Works Suite 2004
Do not accept or execute files from untrusted or unknown sources.
Users should be wary of opening any files that originate from an untrusted or unfamiliar source.
Run all software as a nonprivileged user with minimal access rights.
Running the affected application as a user with minimal access rights may greatly prove to help mitigate the impact of successful exploitation.
Microsoft has released updates to address this issue in supported versions of affected software.
UPDATE: Fixes are available for Microsoft Word 2003 Viewer.
Discovery is credited to Alex Li.
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