USN-4141-1: Exim vulnerability

  • Thread starter Ubuntu security notices
  • Start date

Ubuntu security notices

exim4 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.04

Exim could be made to crash or run programs if it received specially crafted network traffic.

Software Description

  • exim4 - Exim is a mail transport agent

It was discovered that Exim incorrectly handled certain string operations. A remote attacker could use this issue to cause Exim to crash, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 19.04
exim4-daemon-heavy - 4.92-4ubuntu1.4
exim4-daemon-light - 4.92-4ubuntu1.4

To update your system, please follow these instructions:

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


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