1. Ubuntu Security Notices
  2. USN-3565-1

USN-3565-1: Exim vulnerability

Publication date

12 February 2018

Overview

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

Releases

Packages

  • exim4 - Exim is a mail transport agent

Details

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

Meh Chang discovered that Exim incorrectly handled memory in certain
decoding 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

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
17.10 artful exim4-daemon-heavy –  4.89-5ubuntu1.3
exim4-daemon-light –  4.89-5ubuntu1.3
16.04 xenial exim4-daemon-heavy –  4.86.2-2ubuntu2.3
exim4-daemon-light –  4.86.2-2ubuntu2.3
14.04 trusty exim4-daemon-heavy –  4.82-3ubuntu2.4
exim4-daemon-light –  4.82-3ubuntu2.4

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References

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