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@renovate-bot renovate-bot commented Feb 8, 2023

Mend Renovate

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
cryptography (changelog) ==39.0.0 -> ==39.0.1 age adoption passing confidence

GitHub Vulnerability Alerts

CVE-2023-23931

Previously, Cipher.update_into would accept Python objects which implement the buffer protocol, but provide only immutable buffers:

>>> outbuf = b"\x00" * 32
>>> c = ciphers.Cipher(AES(b"\x00" * 32), modes.ECB()).encryptor()
>>> c.update_into(b"\x00" * 16, outbuf)
16
>>> outbuf
b'\xdc\x95\xc0x\xa2@​\x89\x89\xadH\xa2\x14\x92\x84 \x87\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'

This would allow immutable objects (such as bytes) to be mutated, thus violating fundamental rules of Python. This is a soundness bug -- it allows programmers to misuse an API, it cannot be exploited by attacker controlled data alone.

This now correctly raises an exception.

This issue has been present since update_into was originally introduced in cryptography 1.8.

CVE-2023-0286

pyca/cryptography's wheels include a statically linked copy of OpenSSL. The versions of OpenSSL included in cryptography 0.8.1-39.0.0 are vulnerable to a security issue. More details about the vulnerabilities themselves can be found in https://www.openssl.org/news/secadv/20221213.txt and https://www.openssl.org/news/secadv/20230207.txt.

If you are building cryptography source ("sdist") then you are responsible for upgrading your copy of OpenSSL. Only users installing from wheels built by the cryptography project (i.e., those distributed on PyPI) need to update their cryptography versions.


Release Notes

pyca/cryptography

v39.0.1

Compare Source


Configuration

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This PR has been generated by Mend Renovate. View repository job log here.

@renovate-bot renovate-bot requested a review from a team as a code owner February 8, 2023 05:37
@trusted-contributions-gcf trusted-contributions-gcf bot added the kokoro:force-run Add this label to force Kokoro to re-run the tests. label Feb 8, 2023
@kokoro-team kokoro-team removed the kokoro:force-run Add this label to force Kokoro to re-run the tests. label Feb 8, 2023
@parthea parthea merged commit daca19a into GoogleCloudPlatform:main Apr 19, 2023
@renovate-bot renovate-bot deleted the renovate/pypi-cryptography-vulnerability branch April 19, 2023 23:57
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4 participants