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Ubuntu 22.04 LTS: 5526-1 Critical: PyJWT Signature Forgery Issue

ubuntu
Calendar Grey July 20, 2022
Dist Ubuntu Esm H88
Secure your Ubuntu installation by applying updates to fix the recent PyJWT signature forgery vulnerability across multiple versions and enhance protection.
PyJWT could allow signature forgery.

Summary

PyJWT could allow signature forgery.

Software Description:

- pyjwt: Python 3 implementation of JSON Web Token

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 critical update instructions ubuntu signature forgery pyjwt

Update Instructions

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

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

Ubuntu 20.04 LTS:
  python3-jwt                     1.7.1-2ubuntu2.1

Ubuntu 18.04 LTS:
  python-jwt                      1.5.3+ds1-1ubuntu0.1
  python3-jwt                     1.5.3+ds1-1ubuntu0.1

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

References

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

CVE-2022-29217

Severity
critical
Lowest
Low
Medium
High
Critical

July 20, 2022

Topics%20covered

Topics Covered

security advisory critical update instructions ubuntu signature forgery pyjwt

Package Information

https://launchpad.net/ubuntu/+source/pyjwt/2.3.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/pyjwt/1.7.1-2ubuntu2.1
https://launchpad.net/ubuntu/+source/pyjwt/1.5.3+ds1-1ubuntu0.1

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