USN-3603-2: Paramiko vulnerability

20 March 2018

paramiko vulnerability

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

  • Ubuntu 12.04 ESM

Summary

Paramiko could be made to run programs if it received specially crafted network traffic.

Software Description

  • paramiko - Make ssh v2 connections with Python

Details

USN-3603-1 fixed a vulnerability in Paramiko. This update provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Matthijs Kooijman discovered that Paramiko’s SSH server implementation did not properly require authentication before processing requests. An unauthenticated remote attacker could possibly use this to execute arbitrary code.

Update instructions

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

Ubuntu 12.04 ESM
python-paramiko - 1.7.7.1-2ubuntu1.1

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

After a standard system update you need to restart any applications using Paramiko’s server implementation to make all the necessary changes.

References