CVE-2024-37305

oqs-provider is a provider for the OpenSSL 3 cryptography library that adds support for post-quantum cryptography in TLS, X.509, and S/MIME using post-quantum algorithms from liboqs. Flaws have been identified in the way oqs-provider handles lengths decoded with DECODE_UINT32 at the start of serialized hybrid (traditional + post-quantum) keys and signatures. Unchecked length values are later used for memory reads and writes; malformed input can lead to crashes or information leakage. Handling of plain/non-hybrid PQ key operation is not affected. This issue has been patched in in v0.6.1. All users are advised to upgrade. There are no workarounds for this issue.

oqs-provider is a provider for the OpenSSL 3 cryptography library that adds support for post-quantum cryptography in TLS, X.509, and S/MIME using post-quantum algorithms from liboqs. Flaws have been identified in the way oqs-provider handles lengths decoded with DECODE_UINT32 at the start of serialized hybrid (traditional + post-quantum) keys and signatures. Unchecked length values are later used for memory reads and writes; malformed input can lead to crashes or information leakage. Handling of plain/non-hybrid PQ key operation is not affected. This issue has been patched in in v0.6.1. All users are advised to upgrade. There are no workarounds for this issue.

oqs-provider es un proveedor de la librería de criptografía OpenSSL 3 que agrega soporte para criptografía poscuántica en TLS, X.509 y S/MIME utilizando algoritmos poscuánticos de liboqs. Se han identificado fallas en la forma en que oqs-provider maneja las longitudes decodificadas con DECODE_UINT32 al inicio de firmas y claves híbridas serializadas (tradicionales + poscuánticas). Los valores de longitud no verificados se utilizan posteriormente para lecturas y escrituras de memoria; La entrada mal formada puede provocar fallas o fugas de información. El manejo de la operación de clave PQ simple/no híbrida no se ve afectado. Este problema se solucionó en la versión 0.6.1. Se recomienda a todos los usuarios que actualicen. No existen workarounds para este problema.