Several security issues were fixed in Liblouis.
It was discovered that Liblouis incorrectly handled certain files. An attacker could possibly use this to cause a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-11410)
4 June 2018
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in Liblouis.
It was discovered that Liblouis incorrectly handled certain files. An attacker could possibly use this to cause a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-11410)
It was discovered that Liblouis incorrectly handled certain files. An attacker could possibly use this to execute arbitrary code. (CVE-2018-11440)
It was discovered that Liblouis incorrectly handled certain files. An attacker could possibly use this to cause a denial of service or execute arbitrary code. (CVE-2018-11577)
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.