====================================================================== Secunia Research 28/10/2009 - Mozilla Firefox Floating Point Memory Allocation Vulnerability - ====================================================================== 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 ====================================================================== 1) Affected Software * Mozilla Firefox 3.0.14 and 3.5.3. NOTE: Prior versions may also be affected. ====================================================================== 2) Severity Rating: Highly critical Impact: System access Where: Remote ====================================================================== 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/ ====================================================================== 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 due to an array indexing error while allocating space for floating point numbers. This can be exploited to trigger a memory corruption when a specially crafted floating point number is processed. Successful exploitation allows execution of arbitrary code. ====================================================================== 5) Solution Update to version 3.0.15 or 3.5.4. ====================================================================== 6) Time Table 14/09/2009 - Vendor notified. 14/09/2009 - Vendor response. 28/10/2009 - Public disclosure. ====================================================================== 7) Credits Discovered by Alin Rad Pop, Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2009-1563 for the vulnerability. ====================================================================== 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 database as a service to the security community and private 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 to see currently vacant positions: http://secunia.com/corporate/jobs/ Secunia offers a FREE mailing list called Secunia Security Advisories: http://secunia.com/advisories/mailing_lists/ ====================================================================== 10) Verification Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2009-35/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================