USN-4233-1: GnuTLS update

USN-4233-1: GnuTLS update

gnutls28 update

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

• Ubuntu 18.04 LTS
• Ubuntu 16.04 LTS

Summary

SHA1 has been marked as untrusted in GnuTLS.

Software Description

• gnutls28 – GNU TLS library

Details

As a security improvement, this update marks SHA1 as being untrusted for
digital signature operations.

Update instructions

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

Ubuntu 18.04 LTS

libgnutls30 – 3.5.18-1ubuntu1.2

Ubuntu 16.04 LTS

libgnutls30 – 3.4.10-4ubuntu1.6

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

• LP: 1858691

Source: USN-4233-1: GnuTLS update