Multiple vulnerabilities in the Javascript engine in Mozilla Firefox before 2.0.0.8, Thunderbird before 2.0.0.8, and SeaMonkey before 1.1.5 allow remote attackers to cause a denial of service (crash) via crafted HTML that triggers memory corruption.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.