CVE-2024-26130 – cryptography NULL pointer deference with pkcs12.serialize_key_and_certificates when called with a non-matching certificate and private key and an hmac_hash override

https://notcve.org/view.php?id=CVE-2024-26130

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Starting in version 38.0.0 and prior to version 42.0.4, if `pkcs12.serialize_key_and_certificates` is called with both a certificate whose public key did not match the provided private key and an `encryption_algorithm` with `hmac_hash` set (via `PrivateFormat.PKCS12.encryption_builder().hmac_hash(...)`, then a NULL pointer dereference would occur, crashing the Python process. This has been resolved in version 42.0.4, the first version in which a `ValueError` is properly raised. cryptography es un paquete manipulado para exponer recetas y primitivas criptográficas a los desarrolladores de Python. A partir de la versión 38.0.0 y anteriores a la versión 42.0.4, si se llama a `pkcs12.serialize_key_and_certificates` con un certificado cuya clave pública no coincide con la clave privada proporcionada y un `encryption_algorithm` con `hmac_hash` configurado (a través de `PrivateFormat .PKCS12.encryption_builder().hmac_hash(...)`, entonces se produciría una desreferencia del puntero NULL, bloqueando el proceso de Python. Esto se resolvió en la versión 42.0.4, la primera versión en la que se genera correctamente un `ValueError` . • https://github.com/pyca/cryptography/commit/97d231672763cdb5959a3b191e692a362f1b9e55 https://github.com/pyca/cryptography/pull/10423 https://github.com/pyca/cryptography/security/advisories/GHSA-6vqw-3v5j-54x4 https://access.redhat.com/security/cve/CVE-2024-26130 https://bugzilla.redhat.com/show_bug.cgi?id=2269617 • CWE-476: NULL Pointer Dereference •