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Category:   Application (E-mail Client)  >   Mozilla Thunderbird Vendors:   Mozilla.org
Mozilla Thunderbird Javascript Bugs Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1016848
SecurityTracker URL:  http://securitytracker.com/id/1016848
CVE Reference:   CVE-2006-4253, CVE-2006-4565, CVE-2006-4566, CVE-2006-4571   (Links to External Site)
Date:  Sep 15 2006
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.5.0.7
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 create specially crafted HTML that, when loaded by the target user, will trigger a buffer overflow or memory access error and execute arbitrary code on the target system. The code will run with the privileges of the target user.

A JavaScript regular expression that contains a minimal quantifier can trigger this flaw [CVE-2006-4565]. Priit Laes reported this vulnerability.

A regular expression that ends with a backslash inside of an unterminated character set (e.g. "[\\") can trigger an overflow [CVE-2006-4566]. CanadianGuy, Girts Folkmanis, and Catalin Patulea reported this vulnerability.

Timing-dependent Javascript cases can trigger this flaw [CVE-2006-4253]. Jonathan Watt and Michal Zalewski independently reported this vulnerability.

Various cases can trigger memory corruption, which may potentially lead to arbitrary code execution [CVE-2006-4571]. Bernd Mielke, Georgi Guninski, Igor Bukanov, Jesse Ruderman, Martijn Wargers, Mats Palmgren, Olli Pettay, shutdown, and Weston Carloss reported these vulnerabilities.

These vulnerabilities can be exploited only if Javascript is enabled [not the default configuration].

Impact:   A remote user can create HTML 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 (1.5.0.7).

The Mozilla advisories are available at:

http://www.mozilla.org/security/announce/2006/mfsa2006-57.html
http://www.mozilla.org/security/announce/2006/mfsa2006-59.html
http://www.mozilla.org/security/announce/2006/mfsa2006-64.html

Vendor URL:  www.mozilla.org/thunderbird (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Sep 15 2006 (Red Hat Issues Fix) Mozilla Thunderbird Javascript Bugs Let Remote Users Execute Arbitrary Code
Red Hat has released a fix for Red Hat Enterprise Linux 4.



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