full-disclosure - IE sp2 and Mozilla Firefox DoS.

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Message-ID: <20041227182507.32188.qmail@web20227.mail.yahoo.com>
From: visitbipin at yahoo.com (bipin gautam)
Subject: IE sp2 and Mozilla Firefox DoS.

There is an issue with these browser rendering html's
with long titles. 
Only Tested on: 
-------------- 
Internet Explorer(SP2): 6.0.2900.2180 
Mozilla firefox: 1.0 

Not affected:
------------- 
Mozilla Browser 

Have a look at, 
___________________ 
<html> 
<head> <title>  ....(put)3.5 MB OF data....... 

</html> 
___________________

For IE beyond 1 Mb will just do fine. On execution,
Mozilla Firefox starts filling up all the available
system memory with 100% CPU use. 

Internet explorer renders 100% CPU use, but no system
instability. (O; 
I've tested it on Windows XP SP2. 

Both Firefox & IE supports decompression method 'gzip'
ie. an extended request header named
HTTP_ACCEPT_ENCODING like 
HTTP_ACCEPT_ENCODING=gzip,deflate 

By this way, the file can be kept around few kilobytes
in the server and delivered easily. I wonder, why
such... simple issue went un-noticed to everyone for
years... 
Bipin Gautam
http://www.geocities.com/visitbipin/
http://www.nepsecure.tk

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