USN-3796-2: Paramiko vulnerability

17 October 2018

paramiko vulnerability

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

  • Ubuntu 12.04 ESM


Paramiko could allow unintended access to network services.

Software Description

  • paramiko - Python SSH2 library


USN-3796-1 fixed a vulnerability in paramiko. This update provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Daniel Hoffman discovered that Paramiko incorrectly handled authentication when being used as a server. A remote attacker could use this issue to bypass authentication without any credentials.

Update instructions

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

Ubuntu 12.04 ESM
python-paramiko -

To update your system, please follow these instructions:

After a standard system update you need to reboot your computer to make all the necessary changes.