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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-23931",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2023-01-19T21:12:31.360Z",
        "datePublished": "2023-02-07T20:54:03.628Z",
        "dateUpdated": "2025-11-03T21:47:19.856Z"
    },
    "containers": {
        "cna": {
            "title": "Cipher.update_into can corrupt memory in pyca cryptography",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-754",
                            "lang": "en",
                            "description": "CWE-754: Improper Check for Unusual or Exceptional Conditions",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "LOW",
                        "baseScore": 4.8,
                        "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:L",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6r",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6r"
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                {
                    "name": "https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3",
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                    "url": "https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3"
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            "affected": [
                {
                    "vendor": "pyca",
                    "product": "cryptography",
                    "versions": [
                        {
                            "version": ">=1.8, < 39.0.1",
                            "status": "affected"
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                    ]
                }
            ],
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            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions `Cipher.update_into` would accept Python objects which implement the buffer protocol, but provide only immutable buffers. This would allow immutable objects (such as `bytes`) to be mutated, thus violating fundamental rules of Python and resulting in corrupted output. This now correctly raises an exception. This issue has been present since `update_into` was originally introduced in cryptography 1.8."
                }
            ],
            "source": {
                "advisory": "GHSA-w7pp-m8wf-vj6r",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://security.netapp.com/advisory/ntap-20230324-0007/"
                    },
                    {
                        "name": "https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6r",
                        "tags": [
                            "x_refsource_CONFIRM",
                            "x_transferred"
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                        "url": "https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6r"
                    },
                    {
                        "name": "https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
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                        "url": "https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3"
                    },
                    {
                        "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00012.html"
                    }
                ],
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2025-11-03T21:47:19.856Z"
                }
            },
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-03-10T21:01:11.762140Z",
                                "id": "CVE-2023-23931",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
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                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-03-10T21:15:21.787Z"
                }
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        ]
    }
}