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USN-4560-1: Gon gem vulnerability

30 September 2020

Gon gem could be made to run programs if it received specially crafted network traffic.



  • ruby-gon - Ruby library to send data to JavaScript from a Ruby application


It was discovered that Gon gem did not properly escape certain input. An
attacker could use this vulnerability to execute a cross-site scripting
(XSS) attack.

Update instructions

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

Ubuntu 18.04

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