CVE-2008-5014: Improper Input Validation

jslock.cpp in Mozilla Firefox 3.x before 3.0.2, Firefox 2.x before 2.0.0.18, Thunderbird 2.x before 2.0.0.18, and SeaMonkey 1.x before 1.1.13 allows remote attackers to cause a denial of service crash and possibly execute arbitrary code by modifying the window.proto.proto object in a way that...