The Web Services Security component in IBM WebSphere Application Server (WAS) 7.0 before 7.0.0.13 does not properly implement the Java API for XML Web Services (aka JAX-WS), which allows remote attackers to cause a denial of service (data corruption) via a crafted JAX-WS request that leads to incorrectly encoded data.
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.