==========================================================================
Ubuntu Security Notice USN-4973-1
June 01, 2021
python3.8 vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10
- Ubuntu 20.04 LTS
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.
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
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
