USN-3134-1: Python vulnerabilities

Ubuntu Security Notice USN-3134-1

22nd November, 2016

python2.7, python3.2, python3.4, python3.5 vulnerabilities

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

• Ubuntu 16.04 LTS



• Ubuntu 14.04 LTS



• Ubuntu 12.04 LTS

Summary

Several security issues were fixed in Python.

Software description

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









• python3.2
  - An interactive high-level object-oriented language
  
  





• python3.4
  - An interactive high-level object-oriented language
  
  





• python3.5
  - An interactive high-level object-oriented language
  
  

Details

It was discovered that the smtplib library in Python did not return an
error when StartTLS fails. A remote attacker could possibly use this to
expose sensitive information. ()

Insu Yun discovered an integer overflow in the zipimporter module in
Python that could lead to a heap-based overflow. An attacker could
use this to craft a special zip file that when read by Python could
possibly execute arbitrary code. ()

Update instructions

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

Ubuntu 16.04 LTS:

Ubuntu 14.04 LTS:

Ubuntu 12.04 LTS:

To update your system, please follow these instructions:
,

,

CVE-2016-5699