Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to disclose information locally.
Weakness
The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Windows_11_23h2 | Microsoft | * | 10.0.22631.6491 (excluding) |
| Windows_11_24h2 | Microsoft | * | 10.0.26100.7623 (excluding) |
| Windows_11_25h2 | Microsoft | * | 10.0.26200.7623 (excluding) |
Extended Description
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: