CVE-2023-26489

Summary of CVE-2023-26489 (wasmtime/Cranelift): In x86_64, Cranelift’s address-mode computation could extend a 32-bit WebAssembly address to 64 bits, producing an effective address up to 35 bits away from linear memory. With default codegen, this allowed wasm-controlled loads/stores to read/write...

CVE-2023-27477

Wasmtime Cranelift on x86_64 has a codegen bug for i8x16.select that can yield incorrect results when the same operand is used and some selected indices exceed 16. The off-by-one error in the mask calculation for pshufb may cause wrong results when lanes are taken from the second vector. This iss...

CVE-2023-41880

CVE-2023-41880 affects Wasmtime on x86_64 where a miscompilation of the WebAssembly i64x2.shr_s instruction occurs for constant shift amounts greater than 32. Versions 10.0.0 through 10.0.2, 11.0.2, and 12.0.1 contain the issue; patch versions 10.0.2, 11.0.2, and 12.0.2 fix it (11.0.2 and 12.0.2 ...

CVE-2023-30624

Wasmtime CVE-2023-30624 concerns an LLVM-level undefined behavior in per-instance state management (VMContext) of the Wasmtime runtime. The issue occurs in Wasmtime versions prior to 6.0.2, 7.0.1, and 8.0.1 and arises when unsafe code mutates VMContext data via methods using &self, which can lead...