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{"cveTags": [], "descriptions": [{"lang": "en", "value": "liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. A control-flow timing lean has been identified in the reference implementation of the Kyber key encapsulation mechanism when it is compiled with Clang 15-18 for `-Os`, `-O1`, and other compilation options. A proof-of-concept local attack on the reference implementation leaks the entire ML-KEM 512 secret key in ~10 minutes using end-to-end decapsulation timing measurements. The issue has been fixed in version 0.10.1. As a possible workaround, some compiler options may produce vectorized code that does not leak secret information, however relying on these compiler options as a workaround may not be reliable."}, {"lang": "es", "value": "liboqs es una librer\u00eda criptogr\u00e1fica en lenguaje C que proporciona implementaciones de algoritmos de criptograf\u00eda poscu\u00e1ntica. Se ha identificado una escasez de sincronizaci\u00f3n del flujo de control en la implementaci\u00f3n de referencia del mecanismo de encapsulaci\u00f3n de claves Kyber cuando se compila con Clang 15-18 para `-Os`, `-O1` y otras opciones de compilaci\u00f3n. Un ataque local de prueba de concepto a la implementaci\u00f3n de referencia filtra toda la clave secreta ML-KEM 512 en aproximadamente 10 minutos utilizando mediciones de tiempo de decapsulaci\u00f3n de extremo a extremo. El problema se solucion\u00f3 en la versi\u00f3n 0.10.1. Como posible soluci\u00f3n, algunas opciones del compilador pueden producir c\u00f3digo vectorizado que no filtra informaci\u00f3n secreta; sin embargo, confiar en estas opciones del compilador como soluci\u00f3n puede no ser confiable."}], "id": "CVE-2024-36405", "lastModified": "2024-06-10T18:06:22.600", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2024-06-10T13:15:50.700", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/open-quantum-safe/liboqs/blob/7eecda6095c003ddded7175a1ffdf35a2ce63ed5/src/kem/kyber/pqcrystals-kyber_kyber512_ref/poly.c#L166"}, {"source": "security-advisories@github.com", "url": "https://github.com/open-quantum-safe/liboqs/commit/982c762c242ef549c914891b47bf6e0ed6321f91"}, {"source": "security-advisories@github.com", "url": "https://github.com/open-quantum-safe/liboqs/security/advisories/GHSA-f2v9-5498-2vpp"}, {"source": "security-advisories@github.com", "url": "https://github.com/pq-crystals/kyber/commit/9b8d30698a3e7449aeb34e62339d4176f11e3c6c"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-208"}, {"lang": "en", "value": "CWE-385"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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