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Insecure Library Loading
Highly critical

Opera BitTorrent Header Parsing Vulnerability

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Release Date:  2007-07-19    Last Update:  2007-07-27    Views:  18,902

Secunia Advisory SA26138

Where:

From remote

Impact:

System access

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


A vulnerability has been reported in Opera, which can be exploited by malicious people to compromise a user's system

The vulnerability is caused due to Opera using already freed memory when parsing BitTorrent headers and can lead to an invalid object pointer being dereferenced. This can be exploited to execute arbitrary code, when the user is tricked into clicking on a specially crafted BitTorrent file and then removes it via a right-click from the download pane.

The vulnerability is reported in version 9.21 on Windows. Other versions may also be affected.


Solution:
Update to version 9.22.

Provided and/or discovered by:
Discovered by enhalos and reported via iDefense Labs.

Original Advisory:
Opera:
http://www.opera.com/docs/changelogs/windows/922/

iDefense:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=564

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Opera BitTorrent Header Parsing Vulnerability

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