Mozilla Firefox, Thunderbird, and SeaMonkey HTML Frameset Element Integer Overflow Vulnerability
Firefox, Thunderbird, and SeaMonkey are prone to an integer-overflow vulnerability .
An attacker can exploit this issue to execute arbitrary code in the context of the user running the affected application. Failed attempts may lead to a denial-of-service condition.
NOTE: This issue was previously discussed in BID 43045 (Mozilla Firefox SeaMonkey and Thunderbird MFSA 2010-49 Through -63 Multiple Vulnerabilities) but has been given its own record to better document it.
This issue is fixed in: