CVE - CVE-2023-27477

CVE-ID
CVE-2023-27477	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://docs.rs/wasmtime/latest/wasmtime/struct.Config.html#method.wasm_simd URL:https://docs.rs/wasmtime/latest/wasmtime/struct.Config.html#method.wasm_simd MISC:https://github.com/bytecodealliance/wasmtime/commit/5dc2bbccbb363e474d2c9a1b8e38a89a43bbd5d1 URL:https://github.com/bytecodealliance/wasmtime/commit/5dc2bbccbb363e474d2c9a1b8e38a89a43bbd5d1 MISC:https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-xm67-587q-r2vw URL:https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-xm67-587q-r2vw MISC:https://github.com/webassembly/simd URL:https://github.com/webassembly/simd MISC:https://groups.google.com/a/bytecodealliance.org/g/sec-announce/c/Mov-ItrNJsQ URL:https://groups.google.com/a/bytecodealliance.org/g/sec-announce/c/Mov-ItrNJsQ
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20230301	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20230301)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
This is an record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)