Title: Microsoft Internet Explorer Unicode Character Handling DoS Vulnerability
Severity: MODERATE
Description:
It has been reported that Microsoft Internet Explorer crashes when accessing a URL containing an excessive number of unicode characters. This condition may reportedly be triggered if the web user clicks on a maliciously constructed link containing an excessive number of unicode characters. The attacker would essentially have to entice the user into submitting the URL with a vulnerable web browser.
It is not known what causes this to occur. It may not be possible to reproduce this issue on all environments, including two different systems running the same version of the Microsoft Windows operating system with the same version of Internet Explorer. The exact circumstances of why this issue occurs in some environments and not in others are not known at this time.
It has been suggested that this vulnerability is caused by a buffer overflow condition.
This record will be updated as more information becomes available.
Affected Products:
- Microsoft Internet Explorer 6.0
- Microsoft Windows Server 2003 Datacenter Edition
- Microsoft Windows Server 2003 Datacenter Edition Itanium
- Microsoft Windows Server 2003 Enterprise Edition
- Microsoft Windows Server 2003 Enterprise Edition Itanium
- Microsoft Windows Server 2003 Standard Edition
- Microsoft Windows Server 2003 Web Edition
- Microsoft Windows XP Home
- Microsoft Windows XP Professional
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