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PYSEC-2018-23

Quick fix

PYSEC-2018-23 — pyopenssl: upgrade to the fixed version with the command below.

pip install --upgrade 'pyopenssl>=17.5.0'

Details

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/pyopenssl

Introduced in: 0Fixed in: 17.5.0

Fixpip install --upgrade 'pyopenssl>=17.5.0'

References

https://github.com/pyca/pyopenssl/pull/723[WEB]
https://usn.ubuntu.com/3813-1/[WEB]
https://access.redhat.com/errata/RHSA-2019:0085[ADVISORY]
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00014.html[WEB]
https://github.com/advisories/GHSA-p28m-34f6-967q[ADVISORY]