Wasmtime is a standalone runtime for WebAssembly. There is a bug in Wasmtime's code generator, Cranelift, for AArch64 targets where constant divisors can result in incorrect division results at runtime. This affects Wasmtime prior to version 0.38.2 and Cranelift prior to 0.85.2. This issue only affects the AArch64 platform. Other platforms are not affected. The translation rules for constants did not take into account whether sign or zero-extension should happen which resulted in an incorrect value being placed into a register when a division was encountered. The impact of this bug is that programs executing within the WebAssembly sandbox would not behave according to the WebAssembly specification. This means that it is hypothetically possible for execution within the sandbox to go awry and WebAssembly programs could produce unexpected results. This should not impact hosts executing WebAssembly but does affect the correctness of guest programs. This bug has been patched in Wasmtime version 0.38.2 and cranelift-codegen 0.85.2. There are no known workarounds.
References
Link | Resource |
---|---|
https://github.com/bytecodealliance/wasmtime/commit/2ba4bce5cc719e5a74e571a534424614e62ecc41 | Patch Third Party Advisory |
https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-7f6x-jwh5-m9r4 | Third Party Advisory |
https://github.com/bytecodealliance/wasmtime/commit/2ba4bce5cc719e5a74e571a534424614e62ecc41 | Patch Third Party Advisory |
https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-7f6x-jwh5-m9r4 | Third Party Advisory |
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 07:04
Type | Values Removed | Values Added |
---|---|---|
CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.9 |
References | () https://github.com/bytecodealliance/wasmtime/commit/2ba4bce5cc719e5a74e571a534424614e62ecc41 - Patch, Third Party Advisory | |
References | () https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-7f6x-jwh5-m9r4 - Third Party Advisory |
Information
Published : 2022-07-22 04:15
Updated : 2024-11-21 07:04
NVD link : CVE-2022-31169
Mitre link : CVE-2022-31169
CVE.ORG link : CVE-2022-31169
JSON object : View
Products Affected
bytecodealliance
- wasmtime
- cranelift-codegen
CWE
CWE-682
Incorrect Calculation