Bugtraq mailing list archives
Re: Unchecked Buffer in Opera 7.02
From: nesumin <nesumin () softhome net>
Date: Thu, 10 Apr 2003 18:12:12 +0900
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
Current thread:
- Unchecked Buffer in Opera 7.02 David F.Madrid (Apr 08)
- Re: Unchecked Buffer in Opera 7.02 nesumin (Apr 10)