The ienipp.ocx ActiveX control in the browser plugin in Novell iPrint Client before 5.42 does not properly validate the debug parameter, which allows remote attackers to execute arbitrary code or cause a denial of service (stack memory corruption) via a parameter value with a crafted length, related to the ExecuteRequest method.
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.