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From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <507d7b79-5314-5c1d-0994-68ba0924c178@canonical.com>
Subject: [USN-3322-1] Exim vulnerability

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==========================================================================
Ubuntu Security Notice USN-3322-1
June 19, 2017

exim4 vulnerability
==========================================================================

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

- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Exim could be made to run programs as an administrator.

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

Details:

It was discovered that Exim did not properly deallocate memory when
processing certain command line arguments. A local attacker could use this
in conjunction with another vulnerability to possibly execute arbitrary
code and gain administrative privileges.

Update instructions:

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

Ubuntu 17.04:
  exim4-daemon-heavy              4.88-5ubuntu1.1
  exim4-daemon-light              4.88-5ubuntu1.1

Ubuntu 16.10:
  exim4-daemon-heavy              4.87-3ubuntu1.2
  exim4-daemon-light              4.87-3ubuntu1.2

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

Ubuntu 14.04 LTS:
  exim4-daemon-heavy              4.82-3ubuntu2.3
  exim4-daemon-light              4.82-3ubuntu2.3

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

References:
  https://www.ubuntu.com/usn/usn-3322-1
  CVE-2017-1000369

Package Information:
  https://launchpad.net/ubuntu/+source/exim4/4.88-5ubuntu1.1
  https://launchpad.net/ubuntu/+source/exim4/4.87-3ubuntu1.2
  https://launchpad.net/ubuntu/+source/exim4/4.86.2-2ubuntu2.2
  https://launchpad.net/ubuntu/+source/exim4/4.82-3ubuntu2.3



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