1. Ubuntu Security Notices
  2. USN-4075-1

USN-4075-1: Exim vulnerability

Publication date

25 July 2019

Overview

Exim could be made to run programs as an administrator if it received specially crafted network traffic.

Releases

Packages

  • exim4 - Exim is a mail transport agent

Details

Jeremy Harris discovered that Exim incorrectly handled sort expansions. In
environments where sort expansions are used, a remote attacker could
possibly use this issue to execute arbitrary code as root.

Jeremy Harris discovered that Exim incorrectly handled sort expansions. In
environments where sort expansions are used, a remote attacker could
possibly use this issue to execute arbitrary code as root.

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
19.04 disco exim4-daemon-heavy –  4.92-4ubuntu1.2
exim4-daemon-light –  4.92-4ubuntu1.2
18.04 bionic exim4-daemon-heavy –  4.90.1-1ubuntu1.3
exim4-daemon-light –  4.90.1-1ubuntu1.3
16.04 xenial exim4-daemon-heavy –  4.86.2-2ubuntu2.4
exim4-daemon-light –  4.86.2-2ubuntu2.4

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References

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