{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2023-39363",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2023-07-28T13:26:46.480Z",
        "datePublished": "2023-08-07T18:40:25.615Z",
        "dateUpdated": "2024-10-11T14:05:03.824Z"
    },
    "containers": {
        "cna": {
            "title": "Vyper incorrectly allocated named re-entrancy locks",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-863",
                            "lang": "en",
                            "description": "CWE-863: Incorrect Authorization",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "HIGH",
                        "subAvailabilityImpact": "HIGH",
                        "baseScore": 9.1,
                        "baseSeverity": "CRITICAL",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:A",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/vyperlang/vyper/security/advisories/GHSA-5824-cm3x-3c38",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-5824-cm3x-3c38"
                },
                {
                    "name": "https://github.com/vyperlang/vyper/pull/2439",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/vyperlang/vyper/pull/2439"
                },
                {
                    "name": "https://github.com/vyperlang/vyper/pull/2514",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/vyperlang/vyper/pull/2514"
                },
                {
                    "name": "https://hackmd.io/@LlamaRisk/BJzSKHNjn",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://hackmd.io/@LlamaRisk/BJzSKHNjn"
                },
                {
                    "name": "https://hackmd.io/@vyperlang/HJUgNMhs2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://hackmd.io/@vyperlang/HJUgNMhs2"
                }
            ],
            "affected": [
                {
                    "vendor": "vyperlang",
                    "product": "vyper",
                    "versions": [
                        {
                            "version": "= 0.2.15",
                            "status": "affected"
                        },
                        {
                            "version": "= 0.2.16",
                            "status": "affected"
                        },
                        {
                            "version": "= 0.3.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2024-10-11T14:05:03.824Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine (EVM). In versions 0.2.15, 0.2.16 and 0.3.0, named re-entrancy locks are allocated incorrectly. Each function using a named re-entrancy lock gets a unique lock regardless of the key, allowing cross-function re-entrancy in contracts compiled with the susceptible versions. A specific set of conditions is required to result in misbehavior of affected contracts, specifically: a `.vy` contract compiled with `vyper` versions `0.2.15`, `0.2.16`, or `0.3.0`; a primary function that utilizes the `@nonreentrant` decorator with a specific `key` and does not strictly follow the check-effects-interaction pattern (i.e. contains an external call to an untrusted party before storage updates); and a secondary function that utilizes the same `key` and would be affected by the improper state caused by the primary function. Version 0.3.1 contains a fix for this issue."
                }
            ],
            "source": {
                "advisory": "GHSA-5824-cm3x-3c38",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T18:10:20.307Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "name": "https://github.com/vyperlang/vyper/security/advisories/GHSA-5824-cm3x-3c38",
                        "tags": [
                            "x_refsource_CONFIRM",
                            "x_transferred"
                        ],
                        "url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-5824-cm3x-3c38"
                    },
                    {
                        "name": "https://github.com/vyperlang/vyper/pull/2439",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://github.com/vyperlang/vyper/pull/2439"
                    },
                    {
                        "name": "https://github.com/vyperlang/vyper/pull/2514",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://github.com/vyperlang/vyper/pull/2514"
                    },
                    {
                        "name": "https://hackmd.io/@LlamaRisk/BJzSKHNjn",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://hackmd.io/@LlamaRisk/BJzSKHNjn"
                    },
                    {
                        "name": "https://hackmd.io/@vyperlang/HJUgNMhs2",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://hackmd.io/@vyperlang/HJUgNMhs2"
                    }
                ]
            },
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-10-03T18:06:38.040646Z",
                                "id": "CVE-2023-39363",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-10-03T18:06:48.980Z"
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        ]
    }
}