BID:15268

Microsoft Internet Explorer Malformed HTML Parsing Denial of Service Vulnerability

Info

Microsoft Internet Explorer Malformed HTML Parsing Denial of Service Vulnerability

Bugtraq ID:	15268
Class:	Failure to Handle Exceptional Conditions
CVE:
Remote:	Yes
Local:	No
Published:	Nov 01 2005 12:00AM
Updated:	Nov 01 2005 12:00AM
Credit:	[email protected] discovered this vulnerability. Peter Ferrie <[email protected]> and Petko Petkov <[email protected]> also researched this issue.
Vulnerable:	Microsoft Internet Explorer 6.0 SP2 - do not use Microsoft Internet Explorer 6.0 SP1 Microsoft Internet Explorer 6.0 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server - Microsoft Windows 2000 Server - Microsoft Windows 2000 Server - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services - Microsoft Windows 2000 Terminal Services - Microsoft Windows 2000 Terminal Services - Microsoft Windows 98 - Microsoft Windows 98 - Microsoft Windows 98 - Microsoft Windows 98SE - Microsoft Windows 98SE - Microsoft Windows 98SE - Microsoft Windows ME - Microsoft Windows ME - Microsoft Windows ME - Microsoft Windows NT 4.0 SP6a - Microsoft Windows NT 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Terminal Server 4.0 SP6a - Microsoft Windows NT Terminal Server 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a + Microsoft Windows Server 2003 Datacenter Edition + Microsoft Windows Server 2003 Datacenter Edition + Microsoft Windows Server 2003 Datacenter Edition + Microsoft Windows Server 2003 Datacenter Edition Itanium 0 + Microsoft Windows Server 2003 Datacenter Edition Itanium 0 + Microsoft Windows Server 2003 Enterprise Edition + Microsoft Windows Server 2003 Enterprise Edition + Microsoft Windows Server 2003 Enterprise Edition + Microsoft Windows Server 2003 Enterprise Edition Itanium 0 + Microsoft Windows Server 2003 Enterprise Edition Itanium 0 + Microsoft Windows Server 2003 Enterprise Edition Itanium 0 + Microsoft Windows Server 2003 Standard Edition + Microsoft Windows Server 2003 Standard Edition + Microsoft Windows Server 2003 Standard Edition + Microsoft Windows Server 2003 Web Edition + Microsoft Windows Server 2003 Web Edition + Microsoft Windows Server 2003 Web Edition + Microsoft Windows XP Home + Microsoft Windows XP Home + Microsoft Windows XP Home + Microsoft Windows XP Professional + Microsoft Windows XP Professional + Microsoft Windows XP Professional

Not Vulnerable:

Discussion

Microsoft Internet Explorer Malformed HTML Parsing Denial of Service Vulnerability

Microsoft Internet Explorer is affected by a denial of service vulnerability. This issue arises because the application fails to properly parse certain malformed HTML content.

An attacker may exploit this issue by enticing a user to visit a malicious site resulting in a denial of service condition in the application.

Few details are available at this time; this BID will be updated as further information is disclosed.

Exploit / POC

Microsoft Internet Explorer Malformed HTML Parsing Denial of Service Vulnerability

An exploit is not required.

A proof of concept Web page sufficient to trigger this issue is provided by [email protected]:

/data/vulnerabilities/exploits/IEcrash.zip

Solution / Fix

Microsoft Internet Explorer Malformed HTML Parsing Denial of Service Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

References

Microsoft Internet Explorer Malformed HTML Parsing Denial of Service Vulnerability

References:

Mozilla Firefox Home Page (Mozilla)