What is the severity of USN-4327-1?

The severity of USN-4327-1 is not specified in the information provided.

How does the libssh vulnerability affect the system?

The libssh vulnerability could allow a remote attacker to cause libssh to crash, resulting in a denial of service.

Which versions of libssh are affected by USN-4327-1?

Versions 0.9.0-1ubuntu1.4 and 0.8.0~20170825.94fa1e38-1ubuntu0.6 of libssh are affected by USN-4327-1.

How can I fix the libssh vulnerability?

To fix the libssh vulnerability, update to version 0.9.0-1ubuntu1.4 or higher for Ubuntu 19.10, and update to version 0.8.0~20170825.94fa1e38-1ubuntu0.6 or higher for Ubuntu 18.04.

Where can I find more information about USN-4327-1?

You can find more information about USN-4327-1 on the Ubuntu Security website and Launchpad pages.

Vulnerability/
USN-4327-1

9/4/2020

USN-4327-1: libssh vulnerability

First published: Thu Apr 09 2020(Updated: )

Yasheng Yang discovered that libssh incorrectly handled AES-CTR ciphers. A remote attacker could possibly use this issue to cause libssh to crash, resulting in a denial of service.

Affected Software	Affected Version	How to fix
All of
ubuntu/libssh-4	<0.9.0-1ubuntu1.4	0.9.0-1ubuntu1.4
Ubuntu Linux	=19.10
All of
ubuntu/libssh-4	<0.8.0~20170825.94fa1e38-1ubuntu0.6	0.8.0~20170825.94fa1e38-1ubuntu0.6
Ubuntu Linux	=18.04

Never miss a vulnerability like this again

Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

CVE-2020-1730

Frequently Asked Questions

What is the severity of USN-4327-1?
The severity of USN-4327-1 is not specified in the information provided.
How does the libssh vulnerability affect the system?
The libssh vulnerability could allow a remote attacker to cause libssh to crash, resulting in a denial of service.
Which versions of libssh are affected by USN-4327-1?
Versions 0.9.0-1ubuntu1.4 and 0.8.0~20170825.94fa1e38-1ubuntu0.6 of libssh are affected by USN-4327-1.
How can I fix the libssh vulnerability?
To fix the libssh vulnerability, update to version 0.9.0-1ubuntu1.4 or higher for Ubuntu 19.10, and update to version 0.8.0~20170825.94fa1e38-1ubuntu0.6 or higher for Ubuntu 18.04.
Where can I find more information about USN-4327-1?
You can find more information about USN-4327-1 on the Ubuntu Security website and Launchpad pages.

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