USN-3496-3: Python vulnerability

Ubuntu Security Notice USN-3496-3

28th November, 2017

python3.4, python3.5 vulnerability

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

  • Ubuntu 17.04
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

Summary

Python could be made to run arbitrary code.

Software description

  • python3.4 - An interactive high-level object-oriented language
  • python3.5 - An interactive high-level object-oriented language

Details

USN-3496-1 fixed a vulnerability in Python2.7. This update provides
the corresponding update for versions 3.4 and 3.5.

Original advisory details:

It was discovered that Python incorrectly handled decoding certain strings.
An attacker could possibly use this issue to execute arbitrary code.

Update instructions

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

Ubuntu 17.04:
python3.5 3.5.3-1ubuntu0~17.04.2
python3.5-minimal 3.5.3-1ubuntu0~17.04.2
Ubuntu 16.04 LTS:
python3.5 3.5.2-2ubuntu0~16.04.4
python3.5-minimal 3.5.2-2ubuntu0~16.04.4
Ubuntu 14.04 LTS:
python3.4 3.4.3-1ubuntu1~14.04.6
python3.4-minimal 3.4.3-1ubuntu1~14.04.6

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2017-1000158