Exim could be made to run programs as an administrator.
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 a vulnerability in the underlying kernel to possibly execute arbitrary code and gain administrative privileges.
19 June 2017
A security issue affects these releases of Ubuntu and its derivatives:
Exim could be made to run programs as an administrator.
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 a vulnerability in the underlying kernel to possibly execute arbitrary code and gain administrative privileges.
The problem can be corrected by updating your system to the following package versions:
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.
Vulmon