USN-3164-1: Exim vulnerability

5 January 2017

Exim could be made to expose private DKIM signing keys.

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Releases

Packages

  • exim4 - Exim is a mail transport agent

Details

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

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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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.

References

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Further reading