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TITLE:
Mozilla Thunderbird Floating Point Parsing Memory Corruption

SECUNIA ADVISORY ID:
SA37682

VERIFY ADVISORY:
http://secunia.com/advisories/37682/

DESCRIPTION:
A vulnerability has been discovered in Mozilla Thunderbird, which can
be exploited by malicious people to potentially compromise a user's
system.

The vulnerability is caused due to an array indexing error when
processing floating point numbers. This can be exploited to corrupt
memory via e.g. a specially crafted iCalendar file processed by the
Lightning add-on or a specially crafted web page viewed through the
ThunderBrowse add-on.

Successful exploitation may allow execution of arbitrary code.

This is related to vulnerability #1 in:
SA36711

The vulnerability is confirmed in version 2.0.0.23. Other versions
may also be affected.

SOLUTION:
Disable the Lightning add-on.

Do not browse untrusted websites or follow untrusted links.

PROVIDED AND/OR DISCOVERED BY:
Maksymilian Arciemowicz and sp3x

ORIGINAL ADVISORY:
http://securityreason.com/achievement_securityalert/78

OTHER REFERENCES:
SA36711:
http://secunia.com/advisories/36711/

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