CVE-2025-64345
Unsound API access to a WebAssembly shared linear memory
描述
Wasmtime is a runtime for WebAssembly. Prior to version 38.0.4, 37.0.3, 36.0.3, and 24.0.5, Wasmtime's Rust embedder API contains an unsound interaction where a WebAssembly shared linear memory could be viewed as a type which provides safe access to the host (Rust) to the contents of the linear memory. This is not sound for shared linear memories, which could be modified in parallel, and this could lead to a data race in the host. Patch releases have been issued for all supported versions of Wasmtime, notably: 24.0.5, 36.0.3, 37.0.3, and 38.0.4. These releases reject creation of shared memories via `Memory::new` and shared memories are now excluded from core dumps. As a workaround, eembeddings affected by this issue should use `SharedMemory::new` instead of `Memory::new` to create shared memories. Affected embeddings should also disable core dumps if they are unable to upgrade. Note that core dumps are disabled by default but the wasm threads proposal (and shared memory) is enabled by default.
如何修補 CVE-2025-64345
要修補 CVE-2025-64345,請將受影響套件升級到下列已修補版本。
- —未列出修補版本
- —升級至 38.0.4 或更新版本
- —升級至 24.0.5 或更新版本
CVE-2025-64345 正在被利用嗎?
低 — EPSS 為 0.1%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0
- >= 38.0.0, < 38.0.4
- >= 0.0.0-0, < 24.0.5, >= 25.0.0, < 36.0.3, >= 37.0.0, < 37.0.3, >= 38.0.0, < 38.0.4
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | LOW1.8 | CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N |