[USN-3603-2] Paramiko vulnerability

Steve Beattie steve.beattie at canonical.com
Tue Mar 20 19:31:26 UTC 2018

Ubuntu Security Notice USN-3603-2
March 20, 2018

paramiko vulnerability

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

- Ubuntu 12.04 ESM


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

Software Description:
- paramiko: Make ssh v2 connections with Python


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:

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


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