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USN-3795-2: libssh vulnerability

22 October 2018

libssh could allow unintended access to network services.



  • 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

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


Related notices

  • USN-3795-1: libssh-4, libssh-gcrypt-dev, libssh-dev, libssh, libssh-gcrypt-4, libssh-doc