Ruby could be made to execute arbitrary commands if opened a specially crafted file.
It was discovered that Ruby allows FTP command injection. An attacker could use this to cause arbitrary command execution.
4 January 2018
A security issue affects these releases of Ubuntu and its derivatives:
Ruby could be made to execute arbitrary commands if opened a specially crafted file.
It was discovered that Ruby allows FTP command injection. An attacker could use this to cause arbitrary command execution.
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.