[USN-4141-1] Exim vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Sat Sep 28 17:07:18 UTC 2019

Ubuntu Security Notice USN-4141-1
September 28, 2019

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

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


Package Information:

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