4.3

CVE-2023-27477

wasmtime is a fast and secure runtime for WebAssembly. Wasmtime's code generation backend, Cranelift, has a bug on x86_64 platforms for the WebAssembly `i8x16.select` instruction which will produce the wrong results when the same operand is provided to the instruction and some of the selected indices are greater than 16. There is an off-by-one error in the calculation of the mask to the `pshufb` instruction which causes incorrect results to be returned if lanes are selected from the second vector. This codegen bug has been fixed in Wasmtiem 6.0.1, 5.0.1, and 4.0.1. Users are recommended to upgrade to these updated versions. If upgrading is not an option for you at this time, you can avoid this miscompilation by disabling the Wasm simd proposal. Additionally the bug is only present on x86_64 hosts. Other platforms such as AArch64 and s390x are not affected.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Bytecodealliance ≫ Cranelift-codegen SwPlatformrust Version >= 0.84.0 < 0.91.1
Bytecodealliance ≫ Cranelift-codegen Version0.92.0 SwPlatformrust
Bytecodealliance ≫ Cranelift-codegen Version0.93.0 SwPlatformrust
Bytecodealliance ≫ Wasmtime SwPlatformrust Version >= 0.37.0 < 4.0.1
Bytecodealliance ≫ Wasmtime Version5.0.0 SwPlatformrust
Bytecodealliance ≫ Wasmtime Version6.0.0 SwPlatformrust
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.62% 0.451
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.3 2.8 1.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
security-advisories@github.com 3.1 1.6 1.4
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE-193 Off-by-one Error

A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

https://docs.rs/wasmtime/latest/wasmtime/struct.Config.html#method.wasm_simd
Product
https://github.com/webassembly/simd
Not Applicable
https://groups.google.com/a/bytecodealliance.org/g/sec-announce/c/Mov-ItrNJsQ
Vendor Advisory
Mailing List
Release Notes
https://github.com/bytecodealliance/wasmtime/commit/5dc2bbccbb363e474d2c9a1b8e38a89a43bbd5d1
Patch
https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-xm67-587q-r2vw
Patch
Vendor Advisory
Mitigation