{
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    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-27094",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2024-02-19T14:43:05.993Z",
        "datePublished": "2024-02-29T18:18:24.721Z",
        "dateUpdated": "2024-08-02T19:35:12.184Z"
    },
    "containers": {
        "cna": {
            "title": "OpenZeppelin Contracts base64 encoding may read from potentially dirty memory",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-125",
                            "lang": "en",
                            "description": "CWE-125: Out-of-bounds Read",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-9vx6-7xxf-x967",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-9vx6-7xxf-x967"
                },
                {
                    "name": "https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/commit/2d081f24cac1a867f6f73d512f2022e1fa987854",
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                {
                    "name": "https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/commit/723f8cab09cdae1aca9ec9cc1cfa040c2d4b06c1",
                    "tags": [
                        "x_refsource_MISC"
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                    "url": "https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/commit/723f8cab09cdae1aca9ec9cc1cfa040c2d4b06c1"
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                {
                    "name": "https://github.com/OpenZeppelin/openzeppelin-contracts/commit/92224533b1263772b0774eec3134e132a3d7b2a6",
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                        "x_refsource_MISC"
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                    "url": "https://github.com/OpenZeppelin/openzeppelin-contracts/commit/92224533b1263772b0774eec3134e132a3d7b2a6"
                },
                {
                    "name": "https://github.com/OpenZeppelin/openzeppelin-contracts/commit/a6286d0fded8771b3a645e5813e51993c490399c",
                    "tags": [
                        "x_refsource_MISC"
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                    "url": "https://github.com/OpenZeppelin/openzeppelin-contracts/commit/a6286d0fded8771b3a645e5813e51993c490399c"
                }
            ],
            "affected": [
                {
                    "vendor": "OpenZeppelin",
                    "product": "openzeppelin-contracts",
                    "versions": [
                        {
                            "version": ">= 4.5.0, < 4.9.6",
                            "status": "affected"
                        },
                        {
                            "version": ">= 5.0.0-rc.0, < 5.0.2",
                            "status": "affected"
                        }
                    ]
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            ],
            "providerMetadata": {
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                "dateUpdated": "2024-02-29T18:18:24.721Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "OpenZeppelin Contracts is a library for secure smart contract development. The `Base64.encode` function encodes a `bytes` input by iterating over it in chunks of 3 bytes. When this input is not a multiple of 3, the last iteration may read parts of the memory that are beyond the input buffer. The vulnerability is fixed in 5.0.2 and 4.9.6."
                }
            ],
            "source": {
                "advisory": "GHSA-9vx6-7xxf-x967",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
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                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T00:27:58.413Z"
                },
                "title": "CVE Program Container",
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                    {
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            },
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-08-02T19:34:52.561037Z",
                                "id": "CVE-2024-27094",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
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                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                ],
                "title": "CISA ADP Vulnrichment",
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}