Comment 16 for bug 1795921

@yassine-mrabet - In general, Ubuntu does not upgrade major versions of software and instead backports security fixes to the current version - also we track CVEs independently in our own CVE tracker - in this case please see https://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-15688.html

Here you can see this is resolved for bionic in version 237-3ubuntu10.4 which is available in the bionic-security pocket. So simply doing an 'sudo apt-get update && sudo apt-get upgrade' should make this available.