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USN-4478-2: Python-RSA vulnerability

21 February 2022

Python-RSA could be made to expose sensitive information over the network.

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Releases

Packages

  • python-rsa - Pure-Python RSA implementation (Python 2)

Details

USN-4478-1 fixed a vulnerability in Python-RSA.
This update provides the corresponding update for Ubuntu 16.04 ESM,
Ubuntu 18.04 ESM and Ubuntu 20.04 ESM.

Original advisory details:

It was discovered that Python-RSA incorrectly handled certain ciphertexts.
An attacker could possibly use this issue to obtain sensitive information.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References

Related notices

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Further reading