Ubuntu Security Update USN-4233-1: GnuTLS update

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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


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