Ubuntu Security Notices
USN-4560-1

USN-4560-1: Gon gem vulnerability

Publication date

30 September 2020

Overview

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

Releases

18.04 LTS

Packages

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

Details

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

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

Learn more about how to get the fixes.

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

Ubuntu Release	Package Version
18.04 bionic	ruby-gon – 6.1.0-1+deb9u1build0.18.04.1

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References

CVE-2020-25739

CVE-2020-25739