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EUVD-2023-1143

🗓️ 03 Oct 2025 20:07:09Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 2 Views

Wasmtime has a vulnerability in miscompilation of i8x16.select on x86_64 with identical inputs.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
CBLMariner
CVE-2023-27477 affecting package rust for versions less than 1.68.2-2
25 May 202309:38
cbl_mariner
Chainguard
CVE-2023-27477 vulnerabilities
8 Mar 202321:15
cgr
Circl
CVE-2023-27477
9 Mar 202300:23
circl
CNNVD
Wasmtime 安全漏洞
8 Mar 202300:00
cnnvd
CVE
CVE-2023-27477
8 Mar 202300:00
cve
Cvelist
CVE-2023-27477
8 Mar 202300:00
cvelist
Debian CVE
CVE-2023-27477
8 Mar 202300:00
debiancve
Github Security Blog
wasmtime vulnerable to miscompilation of `i8x16.select` with the same inputs on x86_64
9 Mar 202300:09
github
Microsoft CVE
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.
3 Apr 202307:00
mscve
NVD
CVE-2023-27477
8 Mar 202321:15
nvd
Rows per page
[
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    "enisaIdVendor": [
      {
        "id": "42d2d03d-d09d-3129-8773-afed124155ca",
        "vendor": {
          "name": "bytecodealliance"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "15ac181f-a8c8-396b-b5a3-160cf4c165b2",
        "product": {
          "name": "wasmtime"
        },
        "product_version": "cranelift-codegen:  0.92.0, < 0.92.1"
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      },
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      },
      {
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        "product": {
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        },
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      },
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        "id": "fc248052-9ad6-33c1-bb8b-525d89615d79",
        "product": {
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        },
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      }
    ]
  }
]

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03 Oct 2025 20:07Current
4.8Medium risk
Vulners AI Score4.8
CVSS 3.13.1 - 4.3
EPSS0.00474
SSVC
2