CVE-2024-51745: low-severity vulnerability in bytecodealliance wasmtime
Wasmtime doesn't fully sandbox all the Windows device filenames
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 2.3epss 0.8%
Wasmtime is a fast and secure runtime for WebAssembly. Wasmtime's filesystem sandbox implementation on Windows blocks access to special device filenames such as "COM1", "COM2", "LPT0", "LPT1", and so on, however it did not block access to the special device filenames which use superscript digits, such as "COM¹", "COM²", "LPT⁰", "LPT¹", and so on. Untrusted Wasm programs that are given access to any filesystem directory could bypass the sandbox and access devices through those special device filenames with superscript digits, and through them gain access peripheral devices connected to the computer, or network resources mapped to those devices. This can include modems, printers, network printers, and any other device connected to a serial or parallel port, including emulated USB serial ports. Patch releases for Wasmtime have been issued as 24.0.2, 25.0.3, and 26.0.1. Users of Wasmtime 23.0.x and prior are recommended to upgrade to one of these patched versions. There are no known workarounds for this issue. Affected Windows users are recommended to upgrade.
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Affected products
bytecodealliance · wasmtimeRelated CVEs — bytecodealliance wasmtime
In the same product, most dangerous first.
CVE-2022-31104MEDIUMMiscompilation of `i8x16.swizzle` and `select` with v128 inputs in WasmtimeEPSS 1.8%CVE-2023-26489CRITICALGuest-controlled out-of-bounds read/write on x86_64 in wasmtimeEPSS 1.3%CVE-2022-31146MEDIUMUse After Free in WasmtimeEPSS 1.3%CVE-2022-24791HIGHUse after free in WasmtimeEPSS 1.2%CVE-2026-115893CRITICALWasmtime: Cranelift backend on aarch64 can jump to incorrect target on large Wasm `br_table` instructionEPSS 1.0%CVE-2022-39393HIGHWasmtime vulnerable to data leakage between instances in the pooling allocatorEPSS 0.9%