Ubuntu alert USN-4754-5 (python2.7)

From:
             
 
"Leonidas S. Barbosa" <leo.barbosa@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-4754-5] Python vulnerability
Date:
             
 
Tue, 08 Feb 2022 10:14:56 -0300
Message-ID:
             
 
<20220208131456.GA1287176@d4rkl41n>
==========================================================================
Ubuntu Security Notice USN-4754-5
February 08, 2022

python2.7 vulnerability
==========================================================================

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

- Ubuntu 14.04 ESM

Summary:

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

Software Description:
- 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)

Update instructions:

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

Ubuntu 14.04 ESM:
  python2.7                       2.7.6-8ubuntu0.6+esm10
  python2.7-minimal               2.7.6-8ubuntu0.6+esm10

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

References:
  https://ubuntu.com/security/notices/USN-4754-5
  https://ubuntu.com/security/notices/USN-4754-1
  CVE-2021-3177
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