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USN-3164-1: Exim vulnerability

5 January 2017

Exim could be made to expose private DKIM signing keys.



  • exim4 - Exim is a mail transport agent


Bjoern Jacke discovered that Exim incorrectly handled DKIM keys. In certain
configurations, private DKIM signing keys could be leaked to the log files.

Update instructions

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

Ubuntu 16.10
Ubuntu 16.04
Ubuntu 14.04
Ubuntu 12.04

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