Description (CNA)
Wasmtime is a runtime for WebAssembly. In 43.0.0, cloning a wasmtime::Linker is unsound and can result in use-after-free bugs. This bug is not controllable by guest Wasm programs. It can only be triggered by a specific sequence of embedder API calls made by the host. Specifically, the following steps must occur to trigger the bug clone a wasmtime::Linker, drop the original linker instance, use the new, cloned linker instance, resulting in a use-after-free. This vulnerability is fixed in 43.0.1.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| bytecodealliance / wasmtime | affected >= 43.0.0, < 43.0.1 |
CWE
CWE-416
References
ADP enrichment
No English description supplied.