USN-6981-1 fixed vulnerabilities in Drupal. This update provides the corresponding updates for Ubuntu 14.04 LTS.
Original advisory details:
It was discovered that Drupal incorrectly sanitized uploaded filenames. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2020-13671)
It was discovered that Drupal incorrectly sanitized archived filenames. A remote attacker could possibly use this issue to overwrite arbitrary files, or execute arbitrary code. (CVE-2020-28948, CVE-2020-28949)