Ubuntu 16.04 LTS / 16.10 : python-cryptography vulnerability (USN-3138-1)
Medium Nessus Plugin ID 95385
SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionMarkus Doring discovered that python-cryptography incorrectly handled certain HKDF lengths. This could result in python-cryptography returning an empty string instead of the expected derived key.
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected python-cryptography and / or python3-cryptography packages.