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[Security] Bump cryptography from 3.1.1 to 3.2 #79

Closed dependabot-preview[bot] closed 4 years ago

dependabot-preview[bot] commented 4 years ago

Bumps cryptography from 3.1.1 to 3.2. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

RSA decryption vulnerable to Bleichenbacher timing vulnerability

Impact

RSA decryption was vulnerable to Bleichenbacher timing vulnerabilities, which would impact people using RSA decryption in online scenarios.

Patches

This is fixed in cryptography 3.2. https://github.com/pyca/cryptography/commit/58494b41d6ecb0f56b7c5f05d5f5e3ca0320d494 is the resolving commit.

Affected versions: < 3.2

Changelog

Sourced from cryptography's changelog.

3.2 - 2020-10-25

  • SECURITY ISSUE: Attempted to make RSA PKCS#1v1.5 decryption more constant time, to protect against Bleichenbacher vulnerabilities. Due to limitations imposed by our API, we cannot completely mitigate this vulnerability and a future release will contain a new API which is designed to be resilient to these for contexts where it is required. Credit to Hubert Kario for reporting the issue. CVE-2020-25659
  • Support for OpenSSL 1.0.2 has been removed. Users on older version of OpenSSL will need to upgrade.
  • Added basic support for PKCS7 signing (including SMIME) via ~cryptography.hazmat.primitives.serialization.pkcs7.PKCS7SignatureBuilder.
Commits


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dependabot-preview[bot] commented 4 years ago

One of your CI runs failed on this pull request, so Dependabot won't merge it.

Dependabot will still automatically merge this pull request if you amend it and your tests pass.

dependabot-preview[bot] commented 4 years ago

Looks like cryptography is up-to-date now, so this is no longer needed.