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To improve our services to our customers, we have made a number of
additions to the Secunia Advisories and have started translating the
advisories to German.

The improvements will help our customers to get a better
understanding of how we reached our conclusions, how it was rated,
our thoughts on exploitation, attack vectors, and scenarios.

This includes:
* Reason for rating
* Extended description
* Extended solution
* Exploit code or links to exploit code
* Deep links

Read the full description:
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Contact Secunia Sales for more information:
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TITLE:
Mozilla Thunderbird Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA22770

VERIFY ADVISORY:
http://secunia.com/advisories/22770/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass, Cross Site Scripting, DoS, System access

WHERE:
>From remote

SOFTWARE:
Mozilla Thunderbird 1.5.x
http://secunia.com/product/4652/

DESCRIPTION:
Some vulnerabilities have been reported in Mozilla Thunderbird, which
can be exploited by malicious people to bypass certain security
restrictions, conduct cross-site scripting attacks, and potentially
compromise a vulnerable system.

1) The bundled Network Security Services (NSS) library contains an
incomplete fix for the RSA signature verification vulnerability
reported in MFSA 2006-60.

For more information:
SA21903

2) An error exists within the handling of Script objects. This can be
potentially be exploited to execute arbitrary JavaScript bytecode by
modifying already running Script objects.

Successful exploitation requires that JavaScript is enabled.

3) Some unspecified errors in the layout engine and memory corruption
errors in the JavaScript engine can be exploited to crash the
application and may allow the execution of arbitrary code.

Successful exploitation of some of these vulnerabilities requires
that JavaScript is enabled.

4) An unspecified error within XML.prototype.hasOwnProperty can
potentially be exploited to execute arbitrary code.

SOLUTION:
Update to Mozilla Thunderbird 1.5.0.8.

PROVIDED AND/OR DISCOVERED BY:
1) Ulrich Kuehn
2) shutdown
3) Jesse Ruderman, Martijn Wargers, and Igor Bukanov
4) shutdown

ORIGINAL ADVISORY:
MFSA 2006-65:
http://www.mozilla.org/security/announce/2006/mfsa2006-65.html

MFSA 2006-66:
http://www.mozilla.org/security/announce/2006/mfsa2006-66.html

MFSA 2006-67:
http://www.mozilla.org/security/announce/2006/mfsa2006-67.html

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About:
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