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TITLE:
Mozilla Firefox 3 on Mac OS X GIF File Handling Code Execution

SECUNIA ADVISORY ID:
SA31132

VERIFY ADVISORY:
http://secunia.com/advisories/31132/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

OPERATING SYSTEM:
Apple Macintosh OS X
http://secunia.com/product/96/

SOFTWARE:
Mozilla Firefox 3.x
http://secunia.com/product/19089/

DESCRIPTION:
A vulnerability has been reported in Firefox 3 on Mac OS X, which
potentially can be exploited by malicious people to compromise a
user's system.

The vulnerability is caused due to an error in the Mozilla graphics
code on Mac OS X. This can be exploited to free an uninitialised
pointer via a specially crafted GIF file.

Successful exploitation may allow execution of arbitrary code.

SOLUTION:
Update to version 3.0.1.
http://www.mozilla.com/en-US/firefox/

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Drew Yao of Apple Product Security.

ORIGINAL ADVISORY:
MFSA 2008-36:
http://www.mozilla.org/security/announce/2008/mfsa2008-36.html

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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