Ubuntu alert USN-3795-2 (libssh)

From:
             
 
Marc Deslauriers <marc.deslauriers@canonical.com> 
To:
             
 
ubuntu-security-announce@lists.ubuntu.com 
Subject:
             
 
[USN-3795-2] libssh vulnerability 
Date:
             
 
Mon, 22 Oct 2018 14:14:56 -0400
Message-ID:
             
 
<ec7ebce5-d53f-e8e1-77a3-015f2dea71c4@canonical.com>
==========================================================================
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

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

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

References:
  https://usn.ubuntu.com/usn/usn-3795-2
  https://usn.ubuntu.com/usn/usn-3795-1
  CVE-2018-10933

Package Information:
  https://launchpad.net/ubuntu/+source/libssh/0.8.1-1ubuntu0.1

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