Ubuntu Security Notices
USN-3164-1

USN-3164-1: Exim vulnerability

Publication date

5 January 2017

Overview

Exim could be made to expose private DKIM signing keys.

Releases

16.10 16.04 LTS 14.04 LTS 12.04

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.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release	Package Version
16.10 yakkety	exim4-daemon-heavy – 4.87-3ubuntu1.1
16.10 yakkety	exim4-daemon-light – 4.87-3ubuntu1.1
16.04 xenial	exim4-daemon-heavy – 4.86.2-2ubuntu2.1
16.04 xenial	exim4-daemon-light – 4.86.2-2ubuntu2.1
14.04 trusty	exim4-daemon-heavy – 4.82-3ubuntu2.2
14.04 trusty	exim4-daemon-light – 4.82-3ubuntu2.2
12.04 precise	exim4-daemon-heavy – 4.76-3ubuntu3.4
12.04 precise	exim4-daemon-light – 4.76-3ubuntu3.4

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References

CVE-2016-9963

CVE-2016-9963