CVE-2022-39394
- Source
- https://cve.org/CVERecord?id=CVE-2022-39394
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-39394.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-39394
- Aliases
- Downstream
- Published
- 2022-11-10T00:00:00Z
- Modified
- 2026-08-05T03:46:27.470417822Z
- Severity
-
- 3.8 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L CVSS Calculator
- Summary
- wasmtime_trap_code C API function has out of bounds write vulnerability
- Details
-
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_codedoes not match its declared signature in thewasmtime/trap.hheader 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 callingwasmtime_trap_code. Users of thewasmtimecrate are not affected by this issue, only users of the C API functionwasmtime_trap_codeare affected. - Database specific
{ "cwe_ids": [ "CWE-787" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39394.json", "cna_assigner": "GitHub_M", "unresolved_ranges": [ { "extracted_events": [ { "fixed": "2.0.2" } ], "source": "AFFECTED_FIELD" } ] }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39394.json
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-h84q-m8rr-3v9q
- https://nvd.nist.gov/vuln/detail/CVE-2022-39394
- https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bcd5d97bb7ce7ff36