J-Security Center

Title: Microsoft East Asian Word Conversion Vulnerability

Severity: LOW

Description:

East Asian language versions of Word and Powerpoint are susceptible to a buffer overflow exploit. The overflowable buffer is in the code that converts Word 5 documents into newer formats. Word 97, 98, and 2000 will automatically convert older files into the new format upon loading.

If a specially-modified Chinese, Japanese or Korean Word 5 document is loaded into a newer version of Word or PowerPoint, arbitrary code can be executed during the conversion process, at the privilege level of the current user.

Affected Products:

  • Microsoft Converter Pack 2000 0.0.0
  • Microsoft Office 2000 Chinese Version 0.0.0
  • Microsoft Office 2000 Japanese Version 0.0.0
  • Microsoft Office 2000 Korean Version 0.0.0
  • Microsoft Office 97 Chinese Version 0.0.0
  • Microsoft Office 97 Japanese Version 0.0.0
  • Microsoft Office 97 Korean Version 0.0.0
  • Microsoft PowerPoint 2000 Chinese Edition 0.0.0
  • Microsoft PowerPoint 2000 Japanese Edition 0.0.0
  • Microsoft PowerPoint 2000 Korean Edition 0.0.0
  • Microsoft PowerPoint 97 Chinese Edition 0.0.0
  • Microsoft PowerPoint 97 Japanese Edition 0.0.0
  • Microsoft PowerPoint 97 Korean Edition 0.0.0
  • Microsoft Word 2000 Chinese Version
  • Microsoft Word 2000 Japanese Version
  • Microsoft Word 2000 Korean Version
  • Microsoft Word 97 Chinese Version 0.0.0
  • Microsoft Word 97 Japanese Version 0.0.0
  • Microsoft Word 97 Korean Version 0.0.0
  • Microsoft Word 98 Chinese Version 0.0.0
  • Microsoft Word 98 Japanese Version 0.0.0
  • Microsoft Word 98 Korean Version 0.0.0

References:

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