[USN-3795-2] libssh vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Mon Oct 22 18:14:56 UTC 2018

Ubuntu Security Notice USN-3795-2
October 22, 2018

libssh vulnerability

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

- Ubuntu 18.10


libssh could allow unintended access to network services.

Software Description:
- libssh: A tiny C SSH library


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

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


Package Information:

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