Vulnerability Development mailing list archives
Re: MSIE flaws: nested array sort() loop Stack overflow exception
From: "isno" <isno () xfocus org>
Date: Fri, 26 Nov 2004 11:38:06 +0800
I don't think this flaw is exploitable.In MSIE, any loop can lead to exception.Just like: <IFRAME SRC=?> save it as a html file, open it in IE, in about 30 seconds, it will cause a stack_overflow exception and exit. Because IE will not stop allocating stack buffer, until there is not enough stack space. = = = = = = = = = = = = = = = = = = = =
Hi all, Another flaw in IE: <HTML> <SCRIPT> a = new Array(); while (1) { (a = new Array(a)).sort(); } </SCRIPT> <SCRIPT> a = new Array(); while (1) { (a = new Array(a)).sort(); } </SCRIPT> </HTML> Normally I would see if it's exploitable but I figure I'm not MS's pet bug finder/analyser... So, I've CC'ed this message to Microsoft. I'm sure they know their own product better then I do and can analyse the problem much faster. So if you want to know the impact of this vulnerability, ask them: I'm sure they will be more then willing to help you. I'm sure they will even reply to this message with technical details and a patch tomorrow. Added to the list: http://www.edup.tudelft.nl/~bjwever/advisory_ie_flaws.html Cheers, SkyLined http://www.edup.tudelft.nl/~bjwever PS. Don't think firefox will keep you save from hackers, I _know_ it won't ;) But more on that later... PS2. Recursive function call will cause stack overflow causing write exception in guard page on a push, no control over registers.
= = = = = = = = = = = = = = = = = = = = Cheers, isno isno () xfocus org 2004-11-26
Current thread:
- MSIE flaws: nested array sort() loop Stack overflow exception Berend-Jan Wever (Nov 25)
- <Possible follow-ups>
- Re: MSIE flaws: nested array sort() loop Stack overflow exception isno (Nov 27)