A maliciously crafted STP file in ASMKERN228A.dll when parsed through Autodesk AutoCAD can be used to dereference an untrusted pointer. This vulnerability, along with other vulnerabilities, could lead to code execution in the current process.
The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.
An attacker can supply a pointer for memory locations that the product is not expecting. If the pointer is dereferenced for a write operation, the attack might allow modification of critical state variables, cause a crash, or execute code. If the dereferencing operation is for a read, then the attack might allow reading of sensitive data, cause a crash, or set a variable to an unexpected value (since the value will be read from an unexpected memory location). There are several variants of this weakness, including but not necessarily limited to: