A GnuTLS security update has been released for Ubuntu Linux 19.10.

USN-4322-1: GnuTLS vulnerability

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Ubuntu Security Notice USN-4322-1
April 07, 2020

gnutls28 vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 19.10

Summary:

GnuTLS could expose sensitive information over the network.

Software Description:
- gnutls28: GNU TLS library

Details:

It was discovered that GnuTLS incorrectly handled randomness when
performing DTLS negotiation. A remote attacker could possibly use this
issue to obtain sensitive information, contrary to expectations.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 19.10:
libgnutls30 3.6.9-5ubuntu1.1

In general, a standard system update will make all the necessary changes.

References:
  https://usn.ubuntu.com/4322-1
CVE-2020-11501

Package Information:
  https://launchpad.net/ubuntu/+source/gnutls28/3.6.9-5ubuntu1.1