What is the vulnerability ID for this Python vulnerability?

The vulnerability ID for this Python vulnerability is CVE-2021-3733.

What is the severity of the Python vulnerability (CVE-2021-3733)?

The severity of the Python vulnerability (CVE-2021-3733) is not specified.

How does this Python vulnerability (CVE-2021-3733) affect Ubuntu?

This Python vulnerability (CVE-2021-3733) affects Ubuntu 16.04 ESM.

How can this Python vulnerability (CVE-2021-3733) be exploited?

This Python vulnerability (CVE-2021-3733) can be exploited by an attacker to cause a denial of service.

What is the recommended remedy for this Python vulnerability (CVE-2021-3733) on Ubuntu?

The recommended remedy for this Python vulnerability (CVE-2021-3733) on Ubuntu 16.04 ESM is to update to version 3.5.2-2ubuntu0~16.04.13+esm1.

Vulnerability/
USN-5083-1

16/9/2021

USN-5083-1: Python vulnerabilities

First published: Thu Sep 16 2021(Updated: )

It was discovered that Python incorrectly handled certain RFCs. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 ESM. (CVE-2021-3733) It was discovered that Python incorrectly handled certain server responses. An attacker could possibly use this issue to cause a denial of service. (CVE-2021-3737)

Affected Software	Affected Version	How to fix
All of
ubuntu/python3.5	<3.5.2-2ubuntu0~16.04.13+esm1	3.5.2-2ubuntu0~16.04.13+esm1
Ubuntu Ubuntu	=16.04
All of
ubuntu/python3.5-minimal	<3.5.2-2ubuntu0~16.04.13+esm1	3.5.2-2ubuntu0~16.04.13+esm1
Ubuntu Ubuntu	=16.04
All of
ubuntu/python3.4	<3.4.3-1ubuntu1~14.04.7+esm11	3.4.3-1ubuntu1~14.04.7+esm11
Ubuntu Ubuntu	=14.04
All of
ubuntu/python3.4-minimal	<3.4.3-1ubuntu1~14.04.7+esm11	3.4.3-1ubuntu1~14.04.7+esm11
Ubuntu Ubuntu	=14.04

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(Contains the following vulnerabilities)

Frequently Asked Questions

What is the vulnerability ID for this Python vulnerability?
The vulnerability ID for this Python vulnerability is CVE-2021-3733.
What is the severity of the Python vulnerability (CVE-2021-3733)?
The severity of the Python vulnerability (CVE-2021-3733) is not specified.
How does this Python vulnerability (CVE-2021-3733) affect Ubuntu?
This Python vulnerability (CVE-2021-3733) affects Ubuntu 16.04 ESM.
How can this Python vulnerability (CVE-2021-3733) be exploited?
This Python vulnerability (CVE-2021-3733) can be exploited by an attacker to cause a denial of service.
What is the recommended remedy for this Python vulnerability (CVE-2021-3733) on Ubuntu?
The recommended remedy for this Python vulnerability (CVE-2021-3733) on Ubuntu 16.04 ESM is to update to version 3.5.2-2ubuntu0~16.04.13+esm1.

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