[USN-4124-1] Exim vulnerability

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[USN-4124-1] Exim vulnerability

Ubuntu Security Notice USN-4124-1
September 06, 2019

exim4 vulnerability

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

- Ubuntu 19.04
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS


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

Software Description:
- exim4: Exim is a mail transport agent


It was discovered that Exim incorrectly handled certain decoding
operations. A remote attacker could possibly use this issue to execute
arbitrary commands.

Update instructions:

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

Ubuntu 19.04:
  exim4-daemon-heavy              4.92-4ubuntu1.3
  exim4-daemon-light              4.92-4ubuntu1.3

Ubuntu 18.04 LTS:
  exim4-daemon-heavy              4.90.1-1ubuntu1.4
  exim4-daemon-light              4.90.1-1ubuntu1.4

Ubuntu 16.04 LTS:
  exim4-daemon-heavy              4.86.2-2ubuntu2.5
  exim4-daemon-light              4.86.2-2ubuntu2.5

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

  CVE-2019-15846, https://launchpad.net/bugs/1843041

Package Information:

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