Vulnerability-Lookup

GSD-2022-39394

Vulnerability from gsd - Updated: 2023-12-13 01:19

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_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.

Aliases

CVE-2022-39394

Aliases

CVE-2022-39394

JSON

To clipboard

{
  "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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        "ID": "CVE-2022-39394",
        "STATE": "PUBLIC",
        "TITLE": "wasmtime_trap_code C API function has out of bounds write vulnerability"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
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                    "version": {
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                          "version_value": "\u003c 2.0.2"
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          }
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      },
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          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 3.8,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
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          "affected_range": "\u003c1.0.2||\u003e=2.0.0 \u003c2.0.2",
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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.",
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          "package_slug": "conan/wasmtime",
          "pubdate": "2022-11-10",
          "solution": "Unfortunately, there is no solution available in conan yet.",
          "title": "Out-of-bounds Write",
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            "https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bcd5d97bb7ce7ff36"
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          "fixed_versions": [],
          "identifier": "CVE-2022-39394",
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          "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": [
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            "https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bcd5d97bb7ce7ff36"
          ],
          "uuid": "37a40d72-e105-4d54-98aa-0f8f253f7bf8",
          "versions": [
            {
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                "sha": "a1b1d2a7a896836dbba7fe5122e6c86e0d10cf94",
                "tags": [
                  "v2.0.0"
                ],
                "timestamp": "20221024155730"
              },
              "number": "v2.0.0"
            }
          ]
        },
        {
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          "identifier": "CVE-2022-39394",
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          "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",
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            "https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bcd5d97bb7ce7ff36"
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        },
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          "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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            "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": [
            "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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      "lastModifiedDate": "2022-11-16T13:31Z",
      "publishedDate": "2022-11-10T20:15Z"
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  }
}

CVE-2022-39394 (GCVE-0-2022-39394)

Vulnerability from cvelistv5 – Published: 2022-11-10 00:00 – Updated: 2025-04-23 16:39

Title

wasmtime_trap_code C API function has out of bounds write vulnerability

Summary

Severity

3.8 (Low)


                        
                          CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 13:54 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 8035 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/bytecodealliance/wasmtime/secu…
https://github.com/bytecodealliance/wasmtime/comm…

Impacted products

1 product

Vendor	Product	Version
bytecodealliance	wasmtime	Affected: < 2.0.2

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-03T12:07:41.252Z",
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        "discovery": "UNKNOWN"
      },
      "title": "wasmtime_trap_code C API function has out of bounds write vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-39394",
    "datePublished": "2022-11-10T00:00:00.000Z",
    "dateReserved": "2022-09-02T00:00:00.000Z",
    "dateUpdated": "2025-04-23T16:39:05.163Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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