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Ubuntu 20.04 LTS: USN-4973-1 Moderate: Python Network Access Issue

ubuntu
Calendar Grey June 1, 2021
Dist Ubuntu Esm H88
An issue within Python found in Ubuntu may permit unauthorized network traffic, necessitating swift patches for python3.8 software packages.
Python could allow unintended access to network services.

Summary

Python could allow unintended access to network services.

Software Description:

- python3.8: An interactive high-level object-oriented language

Details:

It was discovered that the Python stdlib ipaddress API incorrectly handled

octal strings. A remote attacker could possibly use this issue to perform a

wide variety of attacks, including bypassing certain access restrictions.

Topics%20covered

Topics Covered

security advisory access control moderate threat ubuntu python network access

Update Instructions

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

Ubuntu 20.10:
  python3.8                       3.8.6-1ubuntu0.3
  python3.8-minimal               3.8.6-1ubuntu0.3

Ubuntu 20.04 LTS:
  python3.8                       3.8.5-1~20.04.3
  python3.8-minimal               3.8.5-1~20.04.3

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

References

https://ubuntu.com/security/notices/USN-4973-1

CVE-2021-29921

June 01, 2021

Topics%20covered

Topics Covered

security advisory access control moderate threat ubuntu python network access

Package Information

https://launchpad.net/ubuntu/+source/python3.8/3.8.6-1ubuntu0.3
https://launchpad.net/ubuntu/+source/python3.8/3.8.5-1~20.04.3

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