#VU73808 Input validation error in Wasmtime - CVE-2023-27477
Published: March 20, 2023
Vulnerability identifier: #VU73808
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-27477
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Wasmtime
Wasmtime
Software vendor:
Bytecode Alliance
Bytecode Alliance
Description
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to miscompilation of "i8x16.select" with the same inputs on x86_64. A remote user can cause the WebAssembly instruction to produce incorrect results for the i8x16.select instruction.
Remediation
Install updates from vendor's website.
External links
- https://docs.rs/wasmtime/latest/wasmtime/struct.Config.html#method.wasm_simd
- https://groups.google.com/a/bytecodealliance.org/g/sec-announce/c/Mov-ItrNJsQ
- https://github.com/webassembly/simd
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-xm67-587q-r2vw
- https://github.com/bytecodealliance/wasmtime/commit/5dc2bbccbb363e474d2c9a1b8e38a89a43bbd5d1