Уязвимость пакета cryptography интерпретатора языка программирования Python, позволяющая нарушителю выполнить произвольный код

Уязвимость пакета python-cryptography интерпретатора языка программирования Python, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

Уязвимость функции Cipher.update_into пакета cryptography интерпретатора языка программирования Python, позволяющая нарушителю оказать воздействие на целостность и доступность выходных данных

Уязвимость пакета cryptography интерпретатора языка программирования Python, связанная с ошибками процедуры подтверждения подлинности сертификата, позволяющая нарушителю выполнить атаку типа "человек посередине"

HKDF in cryptography before 1.5.2 returns an empty byte-string if used with a length less than algorithm.digest_size.

python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.

In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions `Cipher.update_into` would accept Python objects which implement the buffer protocol, but provide only immutable buffers. This would allow immutable objects (such as `bytes`) to be mutated, thus violating fundamental rules of Python and resulting in corrupted output. This now correctly raises an exception. This issue has been present since `update_into` was originally introduced in cryptography 1.8.

The cryptography package before 41.0.2 for Python mishandles SSH certificates that have critical options.

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.

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