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                     Secunia Research 18/02/2010

          - Mozilla Firefox Memory Corruption Vulnerability -

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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

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1) Affected Software 

* Mozilla Firefox 3.0.15 and 3.5.4.

NOTE: Other versions may also be affected.

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2) Severity 

Rating: Highly critical
Impact: System access
Where:  Remote

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3) Vendor's Description of Software 

"The award-winning Firefox Web browser has security, speed and new 
features that will change the way you use the Web. Don’t settle for 
anything less."

Product Link:
http://www.mozilla.com/firefox/

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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in Mozilla Firefox, 
which can be exploited by malicious people to compromise a user's 
system.

The vulnerability is caused by an error when handling out-of-memory 
conditions. This can be exploited to corrupt memory and execute 
arbitrary code via a specially crafted web page.

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5) Solution

Update to version 3.0.18 or 3.5.8.

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6) Time Table 

04/11/2009 - Vendor notified.
04/11/2009 - Vendor response.
18/02/2010 - Public disclosure.

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7) Credits 

Discovered by Alin Rad Pop, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2009-1571 for the vulnerability.

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9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://secunia.com/advisories/business_solutions/

Secunia also provides a publicly accessible and comprehensive advisory
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individuals, who are interested in or concerned about IT-security.

http://secunia.com/advisories/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the 
security and reliability of software in general:

http://secunia.com/secunia_research/

Secunia regularly hires new skilled team members. Check the URL below
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http://secunia.com/corporate/jobs/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/

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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2009-45/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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