CVE-2022-39394

Wasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, there is a bug in Wasmtime's C API implementation where the definition of the wasmtimetrapcode does not match its declared signature in the wasmtime/trap.h header file. This discrepancy causes the function implementation to...

CVE-2022-39394 wasmtime_trap_code C API function has out of bounds write vulnerability

Wasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, there is a bug in Wasmtime's C API implementation where the definition of the wasmtimetrapcode does not match its declared signature in the wasmtime/trap.h header file. This discrepancy causes the function implementation to...

CVE-2022-39394

CVE-2022-39394 affects Wasmtime prior to 2.0.2: a mismatch in the wasmtime_trap_code C API implementation can cause a 4-byte write into a 1-byte caller buffer, writing three zero bytes beyond the provided location. The issue is fixed in Wasmtime 2.0.2. Workaround: cast a 4-byte buffer to a 1-byte...