Security Advisory
CVE-2021-42521
CVE vulnerability detail — eXtreme Datacenter Security Operations
Description
There is a NULL pointer dereference vulnerability in VTK before 9.2.5, and it lies in IO/Infovis/vtkXMLTreeReader.cxx. The vendor didnt check the return value of libxml2 API xmlDocGetRootElement, and try to dereference it. It is unsafe as the return value can be NULL and that NULL pointer dereference may crash the application.