Several security issues were fixed in libbsd.
It was discovered that libbsd incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 14.04 ESM. (CVE-2016-2090)
20 January 2020
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in libbsd.
It was discovered that libbsd incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 14.04 ESM. (CVE-2016-2090)
It was discovered that libbsd incorrectly handled certain strings. An attacker could possibly use this issue to access sensitive information. (CVE-2019-20367)
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.