[USN-4973-2] Python vulnerability
Leonidas S. Barbosa
leo.barbosa at canonical.com
Mon Oct 4 14:55:16 UTC 2021
Ubuntu Security Notice USN-4973-2
October 04, 2021
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
Python could allow unintended access to network services.
- python3.8: An interactive high-level object-oriented language
USN-4973-1 fixed this vulnerability previously, but it was re-introduced
in python3.8 in focal because of the SRU in LP: #1928057. This update fixes
Original advisory 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.
The problem can be corrected by updating your system to the following
Ubuntu 20.04 LTS:
In general, a standard system update will make all the necessary changes.
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