CVE-2023-49083

{"id": "CVE-2023-49083", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.2}, {"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2023-11-29T19:15:07.967", "references": [{"url": "https://github.com/pyca/cryptography/commit/f09c261ca10a31fe41b1262306db7f8f1da0e48a", "tags": ["Patch"], "source": "[email protected]"}, {"url": "https://github.com/pyca/cryptography/pull/9926", "tags": ["Issue Tracking", "Patch"], "source": "[email protected]"}, {"url": "https://github.com/pyca/cryptography/security/advisories/GHSA-jfhm-5ghh-2f97", "tags": ["Exploit", "Vendor Advisory"], "source": "[email protected]"}, {"url": "https://lists.fedoraproject.org/archives/list/[email protected]/message/QMNTYMUGFJSDBYBU22FUYBHFRZODRKXV/", "source": "[email protected]"}, {"url": "https://github.com/pyca/cryptography/commit/f09c261ca10a31fe41b1262306db7f8f1da0e48a", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/pyca/cryptography/pull/9926", "tags": ["Issue Tracking", "Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/pyca/cryptography/security/advisories/GHSA-jfhm-5ghh-2f97", "tags": ["Exploit", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00012.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/[email protected]/message/QMNTYMUGFJSDBYBU22FUYBHFRZODRKXV/", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Calling `load_pem_pkcs7_certificates` or `load_der_pkcs7_certificates` could lead to a NULL-pointer dereference and segfault. Exploitation of this vulnerability poses a serious risk of Denial of Service (DoS) for any application attempting to deserialize a PKCS7 blob/certificate. The consequences extend to potential disruptions in system availability and stability. This vulnerability has been patched in version 41.0.6."}, {"lang": "es", "value": "cryptography es un paquete dise\u00f1ado para exponer recetas y primitivas criptogr\u00e1ficas a los desarrolladores de Python. Llamar a `load_pem_pkcs7_certificates` o `load_der_pkcs7_certificates` podr\u00eda provocar una desreferencia de puntero NULL y un error de segmentaci\u00f3n. La explotaci\u00f3n de esta vulnerabilidad plantea un grave riesgo de Denegaci\u00f3n de Servicio (DoS) para cualquier aplicaci\u00f3n que intente deserializar un blob/certificado PKCS7. Las consecuencias se extienden a posibles interrupciones en la disponibilidad y estabilidad del sistema. Esta vulnerabilidad ha sido parcheada en la versi\u00f3n 41.0.6."}], "lastModified": "2025-11-03T22:16:29.837", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cryptography.io:cryptography:*:*:*:*:*:python:*:*", "vulnerable": true, "matchCriteriaId": "EB8793E0-61EC-45EC-8818-44A40DB08658", "versionEndExcluding": "41.0.6", "versionStartIncluding": "3.1"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}