Hello, I think it is known issue. >> http://www.securityfocus.com/bid/7056 And vendor has already released "Opera 7.03 Build 2670". They said that it is fixed-version for that issue. Regards. -------------------------------------------------- nesumin <nesumin@softhome.net> -----Original Message----- From: "David F.Madrid" <conde0@telefonica.net> Sent: Mon, 7 Apr 2003 22:41:02 -0300 (ART) To: <bugtraq@securityfocus.com> Subject: Unchecked Buffer in Opera 7.02 > Tested version : Opera 7.02 Build 2668 > > Vendor Status : Vendor was contacted on 8-4-2003 > > Description : > > Opera web browser has an unchecked buffer in his code that allow a > malicious website to crash it and in certain circumstances , execute code > with user priviliges . > > To reproduce the bug open this link > > http://usuarios.lycos.es/idoru/aaAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA > AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA > AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA > AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA.zip > > Opera crashes with an access violation . Instruction pointer EIP is > overwritten by the file name converted to unicode . That makes only > possible to reference certain addresses in memory to execute . To place > your code to execute in a valid address you have to assign it to an > enviroment variable .That place your code in an address that can be > referenced by EIP ( ~00010040 ) > > > > -- > > Regards , > > David F. Madrid > Madrid , Spain > >
