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Opera execution of arbitrary code
Secunia Advisory: SA8272
Release Date: 2003-03-12
Last Update: 2003-03-13
Popularity: 13,595 views

Critical:
Extremely critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:Opera 6.x
Opera 7.x

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Description:
Opera has been found vulnerable to a buffer overflow in the handling of filenames when showing the "Download Dialog" box.

The problem is that very long filenames are handled incorrectly. This allows a malicious website to create a filename that causes a buffer overflow which can be exploited to execute arbitrary code.

Exploits are in the wild for Windows.

Exploitation does not require user interaction as websites can spawn the "Download Dialog" automatically.

Solution:
Upgrade to version 7.0.3.

Provided and/or discovered by:
nesumin

Changelog:
2003-03-12: Opera has promised an update within 24 hours according to digi.no.
2003-03-13: Opera has released version 7.0.3.


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