Title: Microsoft MSHTML.DLL Crash Vulnerability
Severity: MODERATE
Description:
MSHTML.DLL is the shared library for parsing HTML in Internet Explorer and related applications. It may be possible for an attacker to crash this library remotely and cause a denial of service with special Jscript code.
This bug involves Jscript's ability to handle multiple window objects. If a window object is deleted after it receives data and then re-initalized, the library will reportedly crash. This behavior has been attributed to a stack overflow by its discoverer. It is reportedly not exploitable in any way that may permit an attacker to gain access to the victim host.
Microsoft has acknowledged this bug and it should be fixed in the next service pack.
Affected Products:
- Microsoft Internet Explorer 4.0
- Microsoft Internet Explorer 4.0 for Windows 3.1
- Microsoft Internet Explorer 4.0 for Windows 95
- Microsoft Internet Explorer 4.0 for Windows NT 4.0
- Microsoft Internet Explorer 5.0.1
- Microsoft Internet Explorer 5.0.1 for Windows 2000
- Microsoft Internet Explorer 5.0.1 for Windows 95
- Microsoft Internet Explorer 5.0.1 for Windows 98
- Microsoft Internet Explorer 5.0.1 for Windows NT 4.0
- Microsoft Internet Explorer 5.5
- Microsoft Office 2000
- Microsoft Outlook 2000
- Microsoft Outlook Express 5.5
- Microsoft Windows 95
- Microsoft Windows 98
- Microsoft Windows NT 4.0
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