USN-3795-1: libssh vulnerability

libssh vulnerability

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

• Ubuntu 18.04 LTS
• Ubuntu 16.04 LTS
• Ubuntu 14.04 LTS

Summary

libssh could allow unintended access to network services.

Software Description

• libssh - A tiny C SSH library

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 18.04 LTS

libssh-4 - 0.8.0~20170825.94fa1e38-1ubuntu0.1

Ubuntu 16.04 LTS

libssh-4 - 0.6.3-4.3ubuntu0.1

Ubuntu 14.04 LTS

libssh-4 - 0.6.1-0ubuntu3.4

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

• CVE-2018-10933

from Ubuntu Security Notices https://ift.tt/2yoLv0E