A Python security update has been released for Ubuntu Linux 14.04 LTS, 16.04 LTS, and 18.04 LTS.

[USN-6394-2] Python vulnerability

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Ubuntu Security Notice USN-6394-2
October 17, 2023

python2.7 vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
- Ubuntu 14.04 LTS (Available with Ubuntu Pro)

Summary:

Python could be made to execute arbitrary code if it received
a specially crafted script.

Software Description:
- python2.7: An interactive high-level object-oriented language

Details:

USN-6394-1 fixed a vulnerability in Python. This update provides
the corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory details:

It was discovered that Python incorrectly handled certain scripts.
An attacker could possibly use this issue to execute arbitrary code
or cause a crash.

Update instructions:

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

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
python2.7 2.7.17-1~18.04ubuntu1.13+esm3

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
python2.7 2.7.12-1ubuntu0~16.04.18+esm8

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
python2.7 2.7.6-8ubuntu0.6+esm17

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

References:
https://ubuntu.com/security/notices/USN-6394-2
https://ubuntu.com/security/notices/USN-6394-1
CVE-2022-48560