USN-4754-5: Python vulnerability

Publication date

8 February 2022

Overview

Python could be made to execute arbitrary code or denial of service if it received a specially crafted input.

Releases


Packages

  • python2.7 - An interactive high-level object-oriented language

Details

USN-4754-1 fixed vulnerabilities in Python. Because of a regression, a
subsequent update removed the fix for CVE-2021-3177. This update reinstates
the security fix for CVE-2021-3177 in Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that Python incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code
or cause a denial of service. (CVE-2020-27619, CVE-2021-3177)

USN-4754-1 fixed vulnerabilities in Python. Because of a regression, a
subsequent update removed the fix for CVE-2021-3177. This update reinstates
the security fix for CVE-2021-3177 in Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that Python incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code
or cause a denial of service. (CVE-2020-27619, CVE-2021-3177)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
14.04 trusty python2.7 –  2.7.6-8ubuntu0.6+esm10  
python2.7-minimal –  2.7.6-8ubuntu0.6+esm10  

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