[Security] Bump pyopenssl from 0.14 to 17.5.0

[dependabot-preview]

Bumps pyopenssl from 0.14 to 17.5.0. This update includes security fixes.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Moderate severity vulnerability that affects pyopenssl Python Cryptographic Authority pyopenssl version Before 17.5.0 contains a CWE - 401 : Failure to Release Memory Before Removing Last Reference vulnerability in PKCS #12 Store that can result in Denial of service if memory runs low or is exhausted. This attack appear to be exploitable via Depends upon calling application, however it could be as simple as initiating a TLS connection. Anything that would cause the calling application to reload certificates from a PKCS #12 store.. This vulnerability appears to have been fixed in 17.5.0.

Affected versions: < 17.5.0

Sourced from The GitHub Security Advisory Database.

High severity vulnerability that affects pyopenssl Python Cryptographic Authority pyopenssl version prior to version 17.5.0 contains a CWE-416: Use After Free vulnerability in X509 object handling that can result in Use after free can lead to possible denial of service or remote code execution.. This attack appear to be exploitable via Depends on the calling application and if it retains a reference to the memory.. This vulnerability appears to have been fixed in 17.5.0.

Affected versions: < 17.5.0

Changelog

Sourced from pyopenssl's changelog.

17.5.0 (2017-11-30)

Backward-incompatible changes:

• The minimum cryptography version is now 2.1.4.

Deprecations:

none

Changes:

• Fixed a potential use-after-free in the verify callback and resolved a memory leak when loading PKCS12 files with cacerts. #723
• Added Connection.export_keying_material for RFC 5705 compatible export of keying material. #725

---

17.4.0 (2017-11-21)

Backward-incompatible changes:

none

Deprecations:

none

Changes:

• Re-added a subset of the OpenSSL.rand module. This subset allows conscientious users to reseed the OpenSSL CSPRNG after fork. #708
• Corrected a use-after-free when reusing an issuer or subject from an X509 object after the underlying object has been mutated. #709

---

17.3.0 (2017-09-14)

Backward-incompatible changes:

• Dropped support for Python 3.3. #677
• Removed the deprecated OpenSSL.rand module. This is being done ahead of our normal deprecation schedule due to its lack of use and the fact that it was becoming a maintenance burden. os.urandom() should be used instead. #675

... (truncated)

Commits

• d21fcd8 17.5.0 version bump (#726)
• bdb7639 Export keying material support (#725)
• e738186 fix a memory leak and a potential UAF and also #722 (#723)
• f724786 Pin pytest until we drop 2.6 (#721)
• 736c621 define all to make wildcard import work (#719)
• 57051a5 reopen master (#718)
• e61e202 Require urllib3 tests to pass; fixes #712 (#716)
• 5a3fb40 bump to 17.4.0 (#714)
• acbd662 restore a subset of the rand module (#708)
• 4aa52c3 Don't use things after they're freed...duh (#709)
• Additional commits viewable in compare view

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