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Ubuntu 22.04 LTS USN-5526-2 Moderate PyJWT Regression Fix

ubuntu
Calendar Grey August 17, 2022
Dist Ubuntu Esm H88
Ubuntu Security Advisory USN-5526-2 resolves an issue in PyJWT impacting Ubuntu 22.04 LTS.
USN-5526-1 introduced a regression in PyJWT.

Summary

USN-5526-1 introduced a regression in PyJWT.

Software Description:

- pyjwt: Python 3 implementation of JSON Web Token

Details:

USN-5526-1 fixed vulnerabilities in PyJWT. Unfortunately this caused a

regression by incrementing the internal package version number on Ubuntu

22.04 LTS. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Aapo Oksman discovered that PyJWT incorrectly handled signatures

constructed from SSH public keys. A remote attacker could use this to forge

a JWT signature.

Topics%20covered

Topics Covered

security advisory moderate security issue update ubuntu regression pyjwt

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS:
  python3-jwt                     2.3.0-1ubuntu0.2

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5526-2

https://ubuntu.com/security/notices/USN-5526-1

https://bugs.launchpad.net/ubuntu/+source/pyjwt/+bug/1986487

August 17, 2022

Topics%20covered

Topics Covered

security advisory moderate security issue update ubuntu regression pyjwt

Package Information

https://launchpad.net/ubuntu/+source/pyjwt/2.3.0-1ubuntu0.2

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