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AUSCERT External Security Bulletin Redistribution
31 August 2017
AusCERT Security Bulletin Summary
Operating System: Ubuntu
Impact/Access: Provide Misleading Information -- Remote/Unauthenticated
CVE Names: CVE-2017-11424
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running PyJWT check for an updated version of the software for their
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USN-3407-1: PyJWT vulnerability
Ubuntu Security Notice USN-3407-1
30th August, 2017
A security issue affects these releases of Ubuntu and its derivatives:
Ubuntu 16.04 LTS
PyJWT could be made to crash if it received specially crafted input.
pyjwt - Python implementation of JSON Web Token
It was discovered that a vulnerability in PyJWT doesn't check
invalid_strings properly for some public keys. A remote attacker
could take advantage of a key confusion to craft JWTs from scratch.
The problem can be corrected by updating your system to the following package
Ubuntu 16.04 LTS:
To update your system, please follow these instructions:
In general, a standard system update will make all the necessary changes.
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