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SNS Advisory 76

SNS Advisory 76
Posted Jun 25, 2004
Authored by Nobuo Miwa, Little eArth Corporation | Site lac.co.jp

Internet Explorer allows local users to cause a denial of service against the system when attempting to print a certain HTML page.

tags | advisory, denial of service, local
SHA-256 | 58a12f65eb35074551f1ea9e9c4a526a630bdb238680515640a6defcd2a606db

SNS Advisory 76

Change Mirror Download
--------------------------------------------------------------------------
SNS Advisory No.76
Printing from Internet Explorer Lets Users to Cause DoS

Problem first discovered on: Fri, 28 May 2004
Published on: Wed, 23 Jun 2004
--------------------------------------------------------------------------

Severity Level:
---------------
Low


Overview:
---------
System CPU usage could reach 100% and an extremely large number of
paper sheets, more than the HTML content's actual page number, could
be consumed when a certain HTML page is printed from Microsoft
Internet Explorer.


Problem Description:
--------------------
System CPU usage could reach 100% and an extremely large number of
paper sheets, more than the HTML contents's actual page number, could
be consumed when a certain HTML page is printed from Microsoft
Internet Explorer.

This problem is attributed to some contents described in the TABLE
element. Several Web pages present the same flaw, which causes the
printer to consume over 500 sheets of paper.

CPU usage hits 100% when the user previews the page with the "Print
Preview" feature, however, it was confirmed that this condition was
not a hindrance to normal system operation.


Workaround:
-----------
If the "Print Preview" feature shows that the number of pages to be
printed overly exceeds the actual number of the HTML pages, print the
contents by using another application (Web browser).

It is not known whether a patch will be released soon.


Discovered by:
--------------
Nobuo Miwa n-miwa@lac.co.jp


Report Process:
---------------
This problem was reported to Security Response Team of Microsoft Asia
Limited on June 3, 2004.


Comment from Microsoft Japan:
-----------------------------
Microsoft Japan has acknowledged that the issue described in this
advisory does not pose any security threat.

"Definition of a Security Vulnerability" by Microsoft:
http://www.microsoft.com/technet/archive/community/columns/security/essays/vulnrbl.mspx


Acknowledgments:
---------------
Thanks to:
Security Response Team of Microsoft Asia Limited


Disclaimer:
-----------
The information contained in this advisory may be revised without prior
notice and is provided as it is. Users shall take their own risk when
taking any actions following reading this advisory. LAC Co., Ltd. shall
take no responsibility for any problems, loss or damage caused by, or by
the use of information provided here.

This advisory can be found at the following URL:
http://www.lac.co.jp/security/csl/intelligence/SNSadvisory_e/76_e.html

------------------------------------------------------------------
SecureNet Service(SNS) Security Advisory <snsadv@lac.co.jp>
Computer Security Laboratory, LAC http://www.lac.co.jp/security/
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