Ubuntu alert USN-5701-1 (jinja2)

From:
             
 
Rodrigo Figueiredo Zaiden <rodrigo.zaiden@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-5701-1] Jinja2 vulnerability
Date:
             
 
Wed, 26 Oct 2022 10:46:34 -0300
Message-ID:
             
 
<2934538c-cdbc-100a-a612-c450467ed16f@canonical.com>
==========================================================================
Ubuntu Security Notice USN-5701-1
October 26, 2022

jinja2 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 ESM

Summary:

Jinja2 could be made to hang if it received specially crafted input.

Software Description:
- jinja2: small but fast and easy to use stand-alone template engine

Details:

Yeting Li discovered that Jinja2 incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a denial of service.

Update instructions:

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

Ubuntu 16.04 ESM:
   python-jinja2                   2.8-1ubuntu0.1+esm1
   python3-jinja2                  2.8-1ubuntu0.1+esm1

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

References:
   https://ubuntu.com/security/notices/USN-5701-1
   CVE-2020-28493