==========================================================================
Ubuntu Security Notice USN-4447-1
August 04, 2020
libssh vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
Summary:
libssh could be made to crash if it received a specially crafted request.
Software Description:
– libssh: None
Details:
It was discovered that libssh incorrectly handled certain requests.
An attacker could possibly use this issue to cause a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
libssh-4 0.9.3-2ubuntu2.1
Ubuntu 18.04 LTS:
libssh-4 0.8.0~20170825.94fa1e38-1ubuntu0.7
Ubuntu 16.04 LTS:
libssh-4 0.6.3-4.3ubuntu0.6
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4447-1
CVE-2020-16135
Package Information:
https://launchpad.net/ubuntu/+source/libssh/0.9.3-2ubuntu2.1
https://launchpad.net/ubuntu/+source/libssh/0.8.0~20170825.94fa1e38-1ubuntu0.7
https://launchpad.net/ubuntu/+source/libssh/0.6.3-4.3ubuntu0.6
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