USN-3164-1: Exim vulnerability

Releases

• Ubuntu 16.10
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM
• Ubuntu 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

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

Ubuntu 16.10

• exim4-daemon-heavy - 4.87-3ubuntu1.1
• exim4-daemon-light - 4.87-3ubuntu1.1

Ubuntu 16.04

• exim4-daemon-heavy - 4.86.2-2ubuntu2.1
• exim4-daemon-light - 4.86.2-2ubuntu2.1

Ubuntu 14.04

• exim4-daemon-heavy - 4.82-3ubuntu2.2
• exim4-daemon-light - 4.82-3ubuntu2.2

Ubuntu 12.04

• exim4-daemon-heavy - 4.76-3ubuntu3.4
• exim4-daemon-light - 4.76-3ubuntu3.4

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

References

• CVE-2016-9963