Ubuntu Security Update USN-3322-1: Exim vulnerability

[LinuxBot]

Ubuntu Security Notice USN-3322-1


19th June, 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 version:

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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References


CVE-2017-1000369

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