PostgreSQL products must be a version supported by the vendor.

Unsupported software and systems should not be used because fixes to newly identified bugs will not be implemented by the vendor. The lack of support can result in potential vulnerabilities.

Software and systems at unsupported servicing levels or releases will not receive security updates for new vulnerabilities, which leaves them subject to exploitation.

When maintenance updates and patches are no longer available, software is no longer considered supported and should be upgraded or decommissioned.

If new packages are available for PostgreSQL, they can be reviewed in the package manager appropriate for the server operating system:

To list the version of installed PostgreSQL using psql:

$ sudo su - postgres
$ psql --version

To list the current version of software for RPM:

$ rpm -qa | grep postgres

To list the current version of software for APT:

$ apt-cache policy postgres

All versions of PostgreSQL are listed here: http://www.postgresql.org/support/versioning/

All security-relevant software updates for PostgreSQL are listed here: http://www.postgresql.org/support/security/

If PostgreSQL is not at the latest version, this is a finding.

Upgrade or install a version of the product supported by the vendor.