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USN-4366-1: Exim vulnerability

19 May 2020

Exim could be made to access sensitive information or bypass authentication if it received a specially crafted input.



  • exim4 - Exim is a mail transport agent


It was discovered that Exim incorrectly handled certain inputs.
An remote attacker could possibly use this issue to access sensitive
information or authentication bypass.

Update instructions

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

Ubuntu 20.04
Ubuntu 19.10
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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