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Category:   Application (Generic)  >   Qt Vendors:   Trolltech
Qt Buffer Overflow in QUtf8Decoder May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1018688
SecurityTracker URL:  http://securitytracker.com/id/1018688
CVE Reference:   CVE-2007-4137   (Links to External Site)
Date:  Sep 13 2007
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3, 4
Description:   A vulnerability was reported in Qt. A remote user can execute arbitrary code on the target system.

A remote user can send specially crafted UTF-8 encoded data to an application using Qt to trigger a one-byte buffer overflow and potentially execute arbitrary code on the target system. The code will run with the privileges of the target application or service.

Dirk Mueller of KDE reported this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The vendor has issued patches.

For Qt 3:

http://www.trolltech.com/developer/download/175791_3.diff

For Qt 4:

http://www.trolltech.com/developer/download/175791_4.diff

The fix will be included in the next maintenance release of Qt 4.

The vendor's advisory is available at:

http://trolltech.com/company/newsroom/announcements/press.2007-09-03.7564032119

Vendor URL:  trolltech.com/company/newsroom/announcements/press.2007-09-03.7564032119 (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Sep 13 2007 (Red Hat Issues Fix) Qt Buffer Overflow in QUtf8Decoder May Let Remote Users Execute Arbitrary Code
Red Hat has released a fix for Red Hat Enterprise Linux 2.1, 3, 4, and 5.



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