Wasmtime provides unsound API access to a WebAssembly shared linear memory

Impact Wasmtime's Rust embedder API contains an unsound interaction where a WebAssembly shared linear memory could be viewed as a type which provides safe access to the host Rust to the contents of the linear memory. This is not sound for shared linear memories, which could be modified in paralle...

Linux Distros Unpatched Vulnerability : CVE-2020-15681

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When multiple WASM threads had a reference to a module, and were looking up exported functions, one WASM thread could have overwritten another's entry in a shar...

Google Chrome WasmMemoryObject::Grow Use-After-Free

Chrome: Use-after-free in WasmMemoryObject::Grow VULNERABILITY DETAILS https://cs.chromium.org/chromium/src/v8/src/wasm/wasm-objects.cc?rcl=783343158eb1b147df7e6669f1d03c690c878e21&l=1253 int32t WasmMemoryObject::GrowIsolate isolate, Handle memoryobject, uint32t pages ... Handle newbuffer; if...