USN-4322-1: GnuTLS vulnerability

7 April 2020

gnutls28 vulnerability

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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References