CVE-2022-39394
Summary
| CVE | CVE-2022-39394 |
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| State | PUBLIC |
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| Assigner | [email protected] |
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| Source Priority | CVE Program / NVD first with legacy fallback |
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| Published | 2022-11-10 20:15:00 UTC |
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| Updated | 2022-11-16 13:31:00 UTC |
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| Description | 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. |
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NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
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| Out of bounds write in `wasmtime_trap_code` C API function · Advisory · bytecodealliance/wasmtime · GitHub |
CONFIRM |
github.com |
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| Merge pull request from GHSA-h84q-m8rr-3v9q · bytecodealliance/wasmtime@087d9d7 · GitHub |
MISC |
github.com |
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| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 997086 Rust (Rust) Security Update for wasmtime (GHSA-h84q-m8rr-3v9q)
