USN-3795-2: libssh vulnerability

22 October 2018

libssh vulnerability

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

  • Ubuntu 18.10

Summary

libssh could allow unintended access to network services.

Software Description

  • libssh - A tiny C SSH library

Details

USN-3795-1 fixed a vulnerability in libssh. This update provides the corresponding update for Ubuntu 18.10.

Original advisory details:

Peter Winter-Smith discovered that libssh 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 18.10
libssh-4 - 0.8.1-1ubuntu0.1

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

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

References