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chore(deps): update dependency cryptography to v42 [security] #377

Open renovate-bot opened 7 months ago

renovate-bot commented 7 months ago

Mend Renovate

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
cryptography (changelog) ==41.0.5 -> ==42.0.4 age adoption passing confidence

GitHub Vulnerability Alerts

CVE-2023-49083

Summary

Calling load_pem_pkcs7_certificates or load_der_pkcs7_certificates could lead to a NULL-pointer dereference and segfault.

PoC

Here is a Python code that triggers the issue:

from cryptography.hazmat.primitives.serialization.pkcs7 import load_der_pkcs7_certificates, load_pem_pkcs7_certificates

pem_p7 = b"""
-----BEGIN PKCS7-----
MAsGCSqGSIb3DQEHAg==
-----END PKCS7-----
"""

der_p7 = b"\x30\x0B\x06\x09\x2A\x86\x48\x86\xF7\x0D\x01\x07\x02"

load_pem_pkcs7_certificates(pem_p7)
load_der_pkcs7_certificates(der_p7)

Impact

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.

CVE-2023-50782

A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.

CVE-2024-0727

Issue summary: Processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a potential Denial of Service attack

Impact summary: Applications loading files in the PKCS12 format from untrusted sources might terminate abruptly.

A file in PKCS12 format can contain certificates and keys and may come from an untrusted source. The PKCS12 specification allows certain fields to be NULL, but OpenSSL does not correctly check for this case. This can lead to a NULL pointer dereference that results in OpenSSL crashing. If an application processes PKCS12 files from an untrusted source using the OpenSSL APIs then that application will be vulnerable to this issue.

OpenSSL APIs that are vulnerable to this are: PKCS12_parse(), PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() and PKCS12_newpass().

We have also fixed a similar issue in SMIME_write_PKCS7(). However since this function is related to writing data we do not consider it security significant.

The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue.

CVE-2024-26130

If pkcs12.serialize_key_and_certificates is called with both:

  1. A certificate whose public key did not match the provided private key
  2. 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, and now a ValueError is properly raised.

Patched in https://github.com/pyca/cryptography/pull/10423

Release Notes

pyca/cryptography (cryptography) ### [`v42.0.4`](https://togithub.com/pyca/cryptography/compare/42.0.3...42.0.4) [Compare Source](https://togithub.com/pyca/cryptography/compare/42.0.3...42.0.4) ### [`v42.0.3`](https://togithub.com/pyca/cryptography/compare/42.0.2...42.0.3) [Compare Source](https://togithub.com/pyca/cryptography/compare/42.0.2...42.0.3) ### [`v42.0.2`](https://togithub.com/pyca/cryptography/compare/42.0.1...42.0.2) [Compare Source](https://togithub.com/pyca/cryptography/compare/42.0.1...42.0.2) ### [`v42.0.1`](https://togithub.com/pyca/cryptography/compare/42.0.0...42.0.1) [Compare Source](https://togithub.com/pyca/cryptography/compare/42.0.0...42.0.1) ### [`v42.0.0`](https://togithub.com/pyca/cryptography/compare/41.0.7...42.0.0) [Compare Source](https://togithub.com/pyca/cryptography/compare/41.0.7...42.0.0) ### [`v41.0.7`](https://togithub.com/pyca/cryptography/compare/41.0.6...41.0.7) [Compare Source](https://togithub.com/pyca/cryptography/compare/41.0.6...41.0.7) ### [`v41.0.6`](https://togithub.com/pyca/cryptography/compare/41.0.5...41.0.6) [Compare Source](https://togithub.com/pyca/cryptography/compare/41.0.5...41.0.6)

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