{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "vyper"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-32645"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-04-25T19:53:10Z",
    "nvd_published_at": "2024-04-25T18:15:08Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nIncorrect values can be logged when `raw_log` builtin is called with memory or storage arguments to be used as topics.\n\nA contract search was performed and no vulnerable contracts were found in production. In particular, no uses of `raw_log()` were found at all in production; it is apparently not a well-known function.\n\n### Details\nThe `build_IR` function of the `RawLog` class fails to properly unwrap the variables provided as topics. Consequently, incorrect values are logged as topics.\n\n### PoC\n```vyper\nx: bytes32\n\n@external\ndef f():\n    self.x = 0x1234567890123456789012345678901234567890123456789012345678901234\n    raw_log([self.x], b\"\") # LOG1(offset:0x60, size:0x00, topic1:0x00)\n\n    y: bytes32 = 0x1234567890123456789012345678901234567890123456789012345678901234\n    raw_log([y], b\"\") # LOG1(offset:0x80, size:0x00, topic1:0x40)\n```\n### Patches\nFixed in https://github.com/vyperlang/vyper/pull/3977.\n\n### Impact\nIncorrect values can be logged which may result in unexpected behavior in client-side applications relying on these logs.\n",
  "id": "GHSA-xchq-w5r3-4wg3",
  "modified": "2024-06-18T15:01:23Z",
  "published": "2024-04-25T19:53:10Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-xchq-w5r3-4wg3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-32645"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vyperlang/vyper"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "vyper performs incorrect topic logging in raw_log"
}

{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2024-32645"
      ],
      "details": "Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, incorrect values can be logged when `raw_log` builtin is called with memory or storage arguments to be used as topics. A contract search was performed and no vulnerable contracts were found in production. The `build_IR` function of the `RawLog` class fails to properly unwrap the variables provided as topics. Consequently, incorrect values are logged as topics. As of time of publication, no fixed version is available.",
      "id": "GSD-2024-32645",
      "modified": "2024-04-17T05:01:56.767532Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2024-32645",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "vyper",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003c= 0.3.10"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "vyperlang"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, incorrect values can be logged when `raw_log` builtin is called with memory or storage arguments to be used as topics. A contract search was performed and no vulnerable contracts were found in production. The `build_IR` function of the `RawLog` class fails to properly unwrap the variables provided as topics. Consequently, incorrect values are logged as topics. As of time of publication, no fixed version is available."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-20",
                "lang": "eng",
                "value": "CWE-20: Improper Input Validation"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/vyperlang/vyper/security/advisories/GHSA-xchq-w5r3-4wg3",
            "refsource": "MISC",
            "url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-xchq-w5r3-4wg3"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-xchq-w5r3-4wg3",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "descriptions": [
          {
            "lang": "en",
            "value": "Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, incorrect values can be logged when `raw_log` builtin is called with memory or storage arguments to be used as topics. A contract search was performed and no vulnerable contracts were found in production. The `build_IR` function of the `RawLog` class fails to properly unwrap the variables provided as topics. Consequently, incorrect values are logged as topics. As of time of publication, no fixed version is available."
          },
          {
            "lang": "es",
            "value": "Vyper es un lenguaje de contrato inteligente pit\u00f3nico para la m\u00e1quina virtual Ethereum. En las versiones 0.3.10 y anteriores, se pueden registrar valores incorrectos cuando se llama al comando interno `raw_log` con argumentos de memoria o almacenamiento para usar como temas. Se realiz\u00f3 una b\u00fasqueda de contratos y no se encontraron contratos vulnerables en producci\u00f3n. La funci\u00f3n `build_IR` de la clase `RawLog` no desenvuelve correctamente las variables proporcionadas como temas. En consecuencia, los valores incorrectos se registran como temas. Al momento de la publicaci\u00f3n, no hay ninguna versi\u00f3n fija disponible."
          }
        ],
        "id": "CVE-2024-32645",
        "lastModified": "2024-04-26T12:58:17.720",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2024-04-25T18:15:08.593",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-xchq-w5r3-4wg3"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}