Vulnerability Database
299,455
Total vulnerabilities in the database
CVE-2022-39394
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.
| Software | From | Fixed in |
|---|---|---|
| bytecodealliance / wasmtime | 2.0.0 | 2.0.2 |
| bytecodealliance / wasmtime | - | 1.0.2 |
wasmtime
|
2.0.0 | 2.0.2 |
|
wasmtime
|
- | 1.0.2 |
- https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bcd5d97bb7ce7ff36
- https://github.com/bytecodealliance/wasmtime/commit/5b6d5e78de106503b3b9add218bb3d2b1d63c493
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-h84q-m8rr-3v9q
- https://groups.google.com/a/bytecodealliance.org/g/sec-announce/c/c1HBDDJwNPA
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