CVE-2022-39394

{"id": "CVE-2022-39394", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.8, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 0.3}]}, "published": "2022-11-10T20:15:11.850", "references": [{"url": "https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bcd5d97bb7ce7ff36", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-h84q-m8rr-3v9q", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Wasmtime es un tiempo de ejecuci\u00f3n independiente para WebAssembly. Antes de la versi\u00f3n 2.0.2, hab\u00eda un error en la implementaci\u00f3n de la API C de Wasmtime donde la definici\u00f3n de `wasmtime_trap_code` no coincide con su firma declarada en el archivo de encabezado `wasmtime/trap.h`. Esta discrepancia hace que la implementaci\u00f3n de la funci\u00f3n realice una escritura de 4 bytes en un b\u00fafer de 1 byte proporcionado por la persona que llama. Esto puede provocar que se escriban tres bytes cero m\u00e1s all\u00e1 de la ubicaci\u00f3n de 1 byte proporcionada por la persona que llama. Este error ha sido corregido y los usuarios deben actualizar a Wasmtime 2.0.2. Este error se puede solucionar proporcionando un b\u00fafer de 4 bytes convertido a un b\u00fafer de 1 byte al llamar a `wasmtime_trap_code`. Los usuarios de la caja `wasmtime` no se ven afectados por este problema, solo los usuarios de la funci\u00f3n API de C `wasmtime_trap_code` se ven afectados."}], "lastModified": "2022-11-16T13:31:56.167", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:*", "vulnerable": true, "matchCriteriaId": "DD102201-19F4-4CB7-828B-0B8A8A209919", "versionEndExcluding": "1.0.2"}, {"criteria": "cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:*", "vulnerable": true, "matchCriteriaId": "838C8442-0507-4DFD-B6B8-29462F63E721", "versionEndExcluding": "2.0.2", "versionStartIncluding": "2.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}