CVE-2024-34075

{"id": "CVE-2024-34075", "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.2, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/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": 2.5}]}, "published": "2024-05-03T18:15:09.970", "references": [{"url": "https://github.com/xiboon/kurwov/blob/0d58dfa42135ab40e830e92622857282f980ca89/src/MarkovData.ts#L38-L44", "source": "security-advisories@github.com"}, {"url": "https://github.com/xiboon/kurwov/commit/85d63e652594f121d6656177d7a3c0d823c976c9", "source": "security-advisories@github.com"}, {"url": "https://github.com/xiboon/kurwov/security/advisories/GHSA-hfrv-h3q8-9jpr", "source": "security-advisories@github.com"}, {"url": "https://github.com/xiboon/kurwov/blob/0d58dfa42135ab40e830e92622857282f980ca89/src/MarkovData.ts#L38-L44", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/xiboon/kurwov/commit/85d63e652594f121d6656177d7a3c0d823c976c9", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/xiboon/kurwov/security/advisories/GHSA-hfrv-h3q8-9jpr", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-502"}]}], "descriptions": [{"lang": "en", "value": "kurwov is a fast, dependency-free library for creating Markov Chains. An unsafe sanitization of dataset contents on the `MarkovData#getNext` method used in `Markov#generate` and `Markov#choose` allows a maliciously crafted string on the dataset to throw and stop the function from running properly. If a string contains a forbidden substring (i.e. `__proto__`) followed by a space character, the code will access a special property in `MarkovData#finalData` by removing the last character of the string, bypassing the dataset sanitization (as it is supposed to be already sanitized before this function is called). Any dataset can be contaminated with the substring making it unable to properly generate anything in some cases. This issue has been addressed in version 3.2.5 and all users are advised to upgrade. There are no known workarounds for this vulnerability."}, {"lang": "es", "value": "kurwov es una librer\u00eda r\u00e1pida y libre de dependencias para crear cadenas de Markov. Una sanitizaci\u00f3n insegura del contenido del conjunto de datos en el m\u00e9todo `MarkovData#getNext` usado en `Markov#generate` y `Markov#choose` permite que una cadena creada con fines malintencionados en el conjunto de datos lance y detenga la funci\u00f3n para que no se ejecute correctamente. Si una cadena contiene una subcadena prohibida (es decir, `__proto__`) seguida de un car\u00e1cter de espacio, el c\u00f3digo acceder\u00e1 a una propiedad especial en `MarkovData#finalData` eliminando el \u00faltimo car\u00e1cter de la cadena, evitando la desinfecci\u00f3n del conjunto de datos (como se supone). ya debe estar desinfectado antes de llamar a esta funci\u00f3n). Cualquier conjunto de datos puede estar contaminado con la subcadena, lo que hace que en algunos casos no pueda generar nada correctamente. Este problema se solucion\u00f3 en la versi\u00f3n 3.2.5 y se recomienda a todos los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad."}], "lastModified": "2024-11-21T09:18:02.363", "sourceIdentifier": "security-advisories@github.com"}