{
  "GSD": {
    "alias": "CVE-2022-39394",
    "description": "Wasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, there is a bug in Wasmtime\u0027s 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.",
    "id": "GSD-2022-39394"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-39394"
      ],
      "details": "Wasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, there is a bug in Wasmtime\u0027s 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.",
      "id": "GSD-2022-39394",
      "modified": "2023-12-13T01:19:20.829220Z",
      "schema_version": "1.4.0"
    }
  },
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        "STATE": "PUBLIC",
        "TITLE": "wasmtime_trap_code C API function has out of bounds write vulnerability"
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      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "wasmtime",
                    "version": {
                      "version_data": [
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                          "version_value": "\u003c 2.0.2"
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          }
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      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 3.8,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L",
          "version": "3.1"
        }
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        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-787: Out-of-bounds Write"
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        "reference_data": [
          {
            "name": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-h84q-m8rr-3v9q",
            "refsource": "CONFIRM",
            "url": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-h84q-m8rr-3v9q"
          },
          {
            "name": "https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bcd5d97bb7ce7ff36",
            "refsource": "MISC",
            "url": "https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bcd5d97bb7ce7ff36"
          }
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      "source": {
        "advisory": "GHSA-h84q-m8rr-3v9q",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c1.0.2||\u003e=2.0.0 \u003c2.0.2",
          "affected_versions": "All versions before 1.0.2, all versions starting from 2.0.0 before 2.0.2",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-787",
            "CWE-937"
          ],
          "date": "2022-11-16",
          "description": "Wasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, there is a bug in Wasmtime\u0027s 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.",
          "fixed_versions": [],
          "identifier": "CVE-2022-39394",
          "identifiers": [
            "CVE-2022-39394",
            "GHSA-h84q-m8rr-3v9q"
          ],
          "not_impacted": "",
          "package_slug": "conan/wasmtime",
          "pubdate": "2022-11-10",
          "solution": "Unfortunately, there is no solution available in conan yet.",
          "title": "Out-of-bounds Write",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2022-39394",
            "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-h84q-m8rr-3v9q",
            "https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bcd5d97bb7ce7ff36"
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          "uuid": "7be27bb5-5abb-4ae8-b46d-ce480999213b"
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        {
          "affected_range": "\u003c=v2.0.0",
          "affected_versions": "All versions before 2.0.0",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
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            "CWE-787",
            "CWE-937"
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          "date": "2022-11-16",
          "description": "Wasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, there is a bug in Wasmtime\u0027s 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.",
          "fixed_versions": [],
          "identifier": "CVE-2022-39394",
          "identifiers": [
            "CVE-2022-39394",
            "GHSA-h84q-m8rr-3v9q"
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          "not_impacted": "",
          "package_slug": "go/github.com/bytecodealliance/wasmtime-go",
          "pubdate": "2022-11-10",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Out-of-bounds Write",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2022-39394",
            "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-h84q-m8rr-3v9q",
            "https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bcd5d97bb7ce7ff36"
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          "uuid": "37a40d72-e105-4d54-98aa-0f8f253f7bf8",
          "versions": [
            {
              "commit": {
                "sha": "a1b1d2a7a896836dbba7fe5122e6c86e0d10cf94",
                "tags": [
                  "v2.0.0"
                ],
                "timestamp": "20221024155730"
              },
              "number": "v2.0.0"
            }
          ]
        },
        {
          "affected_range": "(,1.0.2),[2.0.0,2.0.2)",
          "affected_versions": "All versions before 1.0.2, all versions starting from 2.0.0 before 2.0.2",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
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          "date": "2022-11-16",
          "description": "Wasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, there is a bug in Wasmtime\u0027s 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.",
          "fixed_versions": [
            "1.0.2",
            "2.0.2"
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          "identifier": "CVE-2022-39394",
          "identifiers": [
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            "GHSA-h84q-m8rr-3v9q"
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          "not_impacted": "All versions starting from 1.0.2 before 2.0.0, all versions starting from 2.0.2",
          "package_slug": "nuget/Wasmtime",
          "pubdate": "2022-11-10",
          "solution": "Upgrade to version 1.0.2, 2.0.2 or above.",
          "title": "Out-of-bounds Write",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2022-39394",
            "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-h84q-m8rr-3v9q",
            "https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bcd5d97bb7ce7ff36"
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          "uuid": "5e565e73-06dd-41f8-b6c9-db8d87470283"
        },
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          "date": "2022-11-16",
          "description": "Wasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, there is a bug in Wasmtime\u0027s 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.",
          "fixed_versions": [
            "1.0.2",
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          "identifier": "CVE-2022-39394",
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          "package_slug": "pypi/wasmtime",
          "pubdate": "2022-11-10",
          "solution": "Upgrade to version 1.0.2, 2.0.2 or above.",
          "title": "Out-of-bounds Write",
          "urls": [
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            "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-h84q-m8rr-3v9q",
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          "uuid": "45f5199e-66f4-464f-a461-27ce665f3db6"
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      "lastModifiedDate": "2022-11-16T13:31Z",
      "publishedDate": "2022-11-10T20:15Z"
    }
  }
}