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Category:   Application (E-mail Client)  >   Mozilla Thunderbird Vendors:
Mozilla Thunderbird E-mail Header Heap Overflows Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1017420
SecurityTracker URL:
CVE Reference:   CVE-2006-6505   (Links to External Site)
Date:  Dec 20 2006
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.5 -
Description:   A vulnerability was reported in Mozilla Thunderbird. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can send e-mail with a specially crafted Content-Type header value to trigger a heap overflow and execute arbitrary code on the target user's system. A specially crafted rfc2047-encoded header can also trigger a heap overflow.

Georgi Guninski and David Bienvenu reported these vulnerabilities.

Impact:   A remote user can create e-mail that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fixed version (

The Mozilla advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.

 Source Message Contents

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