The vSphere API in VMware ESXi 4.1 and ESX 4.1 allows remote attackers to cause a denial of service (host daemon crash) via an invalid value in a (1) RetrieveProp or (2) RetrievePropEx SOAP request.
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.