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カテゴリ
CVE-2022-39394

wasmtime_trap_code C API function has out of bounds write vulnerability

概要

wasmtime_trap_code C API function has out of bounds write vulnerability

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

Wasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, there is a bug in Wasmtime's C API implementation where the definition of the wasmtime_trap_code does not match its declared signature in the wasmtime/trap.h header file. This discrepancy causes the function implementation to perform a 4-byte write into a 1-byte buffer provided by the caller. This can lead to three zero bytes being written beyond the 1-byte location provided by the caller. This bug has been patched and users should upgrade to Wasmtime 2.0.2. This bug can be worked around by providing a 4-byte buffer casted to a 1-byte buffer when calling wasmtime_trap_code. Users of the wasmtime crate are not affected by this issue, only users of the C API function wasmtime_trap_code are affected.

出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

影響パッケージ

crates.io wasmtime
[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"1.0.2"},{"introduced":"2.0.0"},{"fixed":"2.0.2"}]}]

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