The 4thPass browser (BlackBerry Browser) on the RIM BlackBerry 8100 (Pearl) before 4.2.1 allows remote attackers to cause a denial of service (temporary functionality loss) via a long href attribute in a link in a WML page.
Improper Input Validation 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.