The HTTP client functionality in Apple iPhone OS 3.1 on the iPhone 2G and 3.1.3 on the iPhone 3GS allows remote attackers to cause a denial of service (Safari, Mail, or Springboard crash) via a crafted innerHTML property of a DIV element, related to a "malformed character" issue.
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.