USN-5479-1 fixed vulnerabilities in PHP. Unfortunately that update for
CVE-2022-31625 was incomplete for Ubuntu 18.04 LTS. This update fixes
the problem.
We apologize for the inconvenience.
Original advisory details:
Charles Fol discovered that PHP incorrectly handled initializing certain
arrays when handling the pg_query_params function. A remote attacker could
use this issue to cause PHP to crash, resulting in a denial of service, or
possibly execute arbitrary code. (CVE-2022-31625)
Charles Fol discovered that PHP incorrectly handled passwords in mysqlnd. A
remote attacker could use this issue to cause PHP to crash, resulting in a
denial of service, or possibly execute arbitrary code. (CVE-2022-31626)